Paleontologists from Australia and China have conducted two groundbreaking studies on the fossilized remains of a remarkable Devonian lungfish. Utilizing advanced imaging technology, they have unearthed previously overlooked anatomical details, significantly enhancing our understanding of early vertebrate evolution. Their findings have been published in the Canadian Journal of Zoology and the journal Current Biology.
Paleolophus yunnanensis, a unique lungfish species that thrived in southern China’s waters 410 million years ago. Image credit: Brian Choo, Flinders University.
In a recent study, lead researcher Alice Clement, a paleontologist at Flinders University, investigates The Mystery of Kainokara, a fossil known from a single specimen found in the Late Devonian Gogo Formation of Western Australia.
“New research, including the analysis of previously neglected specimens, is gradually uncovering the rich diversity of lungfishes found in Australia’s significant fossil sites,” said Dr. Clement.
“One particularly enigmatic specimen originates from Australia’s earliest ‘Great Barrier Reef’, a Devonian reef located in the Kimberley region of northern Western Australia.”
“When first described in 2010, this unusual specimen was so perplexing that the authors speculated it might represent an entirely new type of fish never documented in science.”
“Using advanced scanning techniques, we developed comprehensive digital images of both the external and internal structures of the skull, revealing the complexity of this fascinating lungfish’s brain cavity.”
“In fact, we confirmed that earlier interpretations may have been from an upside-down perspective.”
“We were also able to compare the well-preserved inner ear region with other lungfishes,” noted Flinders University paleontologist Hannah Thiele.
“This provides an essential data point in the rich collection of lungfish and early vertebrate species.”
“This research enhances our understanding of the evolutionary progression of these ancient lobe-finned fishes, both in Gondwana and globally.”
In a separate study, Flinders University paleontologist Brian Chu and colleagues reveal a newly discovered species of lungfish from the Devonian period in China, Paleolophus yunanensis.
“The discovery of Paleolophus yunanensis offers unprecedented insight into the transitional phase between the early appearance of lungfish and their extensive diversification millions of years later,” said Dr. Chu.
“At this time, this group was just beginning to develop unique feeding adaptations that would serve them well throughout the remainder of the Devonian period and into the present.”
“Lungfish, including the ancient lineage found in Queensland, Australia, have fascinated researchers due to their close evolutionary relationship with tetrapods, the four-limbed vertebrates that include humans.”
“The distinctive skull of the newly discovered lungfish from 410-million-year-old rock formations in Yunnan offers crucial insights into the rapid evolutionary changes during the Early, Middle, and Late Devonian periods.”
“The new specimens exhibited both similarities and differences compared to the earliest known specimens, such as Diabolepis fossils from southern China and uranolophus found in locations like Wyoming and Australia.
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Hannah S. Thiele et al., deciphering The Mystery of Kainokara from the Late Devonian Gogo Formation, Australia. Canadian Journal of Zoology, published online January 28, 2026. doi: 10.1139/cjz-2025-0109
Tuo Qiao et al., 2026. New fish fossil sheds light on the rapid evolution of early lungfish. Current Biology 36 (1): 243-251; doi: 10.1016/j.cub.2025.11.032
Recent discoveries of hominin fossils in the Thomas Quarry I cave located in Casablanca, Morocco, provide crucial insights into the early origins of homo sapiens. These findings indicate that the lineage leading to modern humans was potentially established in Africa nearly 800,000 years ago. The fossils, although similar in age to the ancestor of homo discovered in Spain, display a mix of primitive and advanced traits reminiscent of post-Eurasian hominins, including homo sapiens.
Reconstruction of homo erectus.
Paleoanthropologists have long debated the origins of Neanderthals and Denisovans, the last common ancestors of modern humans. Genetic studies reveal that this ancestor likely existed between approximately 765,000 and 550,000 years ago, although fossil records are still inconclusive.
While some researchers have posited a Eurasian origin based on fossils unearthed in Atapuerca, Spain, dating back to 950,000 to 770,000 years ago, the new findings from Morocco reinforce the theory of an African origin.
Recent discoveries from the Moroccan cave, including mandible fragments, teeth, vertebrae, and femur pieces, bolster the evidence supporting Africa as the cradle of human evolution.
Analysis of the sediments surrounding these fossils indicates that they date back approximately 773,000 years, coinciding with significant changes in the Earth’s magnetic field, aligning with the era of the ancestor of homo.
Interestingly, the new fossils present distinct morphological differences. The evidence suggests that regional differentiation between Europe and North Africa was already evident by the late Early Pleistocene, spanning from around 1.8 million to 780,000 years ago.
The Moroccan fossils exhibit a blend of primitive features linked to species like homo erectus alongside more modern traits found in homo sapiens and Neanderthals.
For instance, their molar size aligns with earlier homo sapiens fossils, while the jaw shape resembles that of Neanderthals and other African archaic humans.
Although the Moroccan fossil may not serve as the ultimate last common ancestor of modern humans, Neanderthals, and Denisovans, it is likely a close precursor.
“The Moroccan fossils likely represent an advanced form of homo erectus in North Africa, situated on a lineage close to the evolutionary divergence between African and Eurasian lineages,” stated the researchers.
“Our findings underscore the Maghreb region as vital for understanding the emergence of our species and strengthen the argument for an African origin of homo sapiens,” they concluded.
Findings are detailed in a recent study published in Nature.
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J.J. Havlin and colleagues. Early human fossils from Morocco and the emergence of homo sapiens. Nature, published online January 7, 2026. doi: 10.1038/s41586-025-09914-y
The bold initiative by Reflect Orbital aims to commence in 2026, deploying satellites to reflect sunlight back to Earth. This technology seeks to illuminate dark regions for visibility and enhance energy generation. However, many astronomers express skepticism regarding the project’s feasibility and its implications for scientific research.
Reflect Orbital, a US-based company, aspires to provide “sunlight on demand.” Their first satellite is expected to launch in early 2026, illuminating ten locations as part of its inaugural “world tour.” Plans include deploying thousands of satellites fitted with extensive mirrors designed to reflect sunlight back to the Earth, catering to needs such as remote control, defense, infrastructure, and energy production.
By 2030, Reflect Orbital anticipates having sufficient satellite coverage to deliver 200 watts per square meter to solar farms on Earth, mimicking the light levels of dusk and dawn, thereby facilitating reliable energy production, especially in regions lacking natural light.
Despite these ambitions, their Federal Communications Commission (FCC) specifications suggest that a single satellite may not generate significant power. Astronomers, including members from Tucson’s Dark Sky Consulting and the American Astronomical Society, utilized these filings to underscore potential energy limitations.
As highlighted by John Valentine, a prominent scholar in the field, the reflected light would only exceed a full moon’s brightness fourfold, indicating insufficient electricity generation. In order to produce more significant light output, deploying satellites with a multitude of reflectors would be essential, presenting logistical challenges and increased costs.
Furthermore, the dynamic nature of the mirrors could pose challenges for astronomical research, since they might intermittently produce flashes of sunlight. Additionally, even micro-damage to a satellite’s reflector from tiny meteoroids could scatter light unintentionally, complicating operational efficiency.
Reflect Orbital is actively engaging with the scientific community to explore solutions for these arising concerns. As of now, the company has not responded to inquiries from New Scientist.
Sahelanthropus: Fossil comparison with chimpanzees and humans
Williams et al., Sci. Adv. 12, eadv0130
The long-standing debate regarding whether our earliest ancestors walked on knuckles like chimpanzees or stood upright like modern humans may be closer to resolution, yet skepticism remains.
Scott Williams and researchers at New York University recently reanalyzed fossil remains of Sahelanthropus tchadensis, indicating that this species possessed at least three anatomical features suggesting it was our earliest known bipedal ancestor.
The journey to this conclusion has been extensive.
Fossilized remains of a skull, teeth, and jawbone from approximately 7 million years ago were first identified in 2002 in Chad, north-central Africa. The distinctive features of this ancient species, including its prominent brow ridge and smaller canine teeth, were quickly acknowledged as diverging from ape characteristics.
Analyzing the skull’s anatomy suggests it was positioned directly over the vertebrae, analogous to other upright, bipedal hominins.
In 2004, French scientists uncovered the femur and ulna associated with the Sahelanthropus skull from Chad. However, it wasn’t until 2020 that researchers claimed the femur exhibited curvature similar to that of non-bipedal great apes.
Since then, scholarly debate has fluctuated. For instance, in 2022, researchers Frank Guy and Guillaume Daver of the University of Poitiers argued for anatomical features of the femur that indicate bipedalism. In 2024, Clement Zanoli and colleagues from the University of Bordeaux countered, suggesting Guy and Daver’s assertions were flawed, as the anatomical characteristics of bipedalism may also appear in non-bipedal great apes.
Lead study author Williams started with a “fairly ambivalent” stance on Sahelanthropus.
His team investigated the femur’s attachment point for the gluteus maximus muscle, finding similarities to human femur anatomy.
They also compared the femur and ulna size and shape; while similar in size to chimpanzee bones, they aligned more closely with human proportions.
Additionally, they identified the “femoral tuberosity,” a previously overlooked feature of Sahelanthropus.
“We initially identified it by touch, later confirming it with 3D scans of the fossil,” Williams shared. “This bump, present only in species with a femoral tubercle, contrasts smooth areas found in great apes and plays a critical role in mobility.”
This area serves as an attachment point for the iliofemoral ligament, the strongest ligament in the human body. While relaxed when seated, it tightens during standing or walking, securing the femoral head in the hip joint and preventing the torso from tilting backward or sideways.
However, Williams expressed doubts about whether this study would fully end the conversation about how Sahelanthropus moved.
“We are confident Sahelanthropus was an early bipedal hominin, but we must recognize that the debate is ongoing,” Williams noted.
In response to a recent paper, Guy and Daver issued a joint statement asserting that humans likely began walking on two legs by 2022: “This reaffirms our earlier interpretations about Sahelanthropus adaptations and locomotion, suggesting habitual bipedalism despite its ape-like morphology.”
They acknowledged that only new fossil discoveries could unequivocally conclude the matter.
John Hawkes, a professor at the University of Wisconsin-Madison, also endorsed the new findings, noting their implications for understanding the complex origins of the hominin lineage.
“It may be deceptive to perceive Sahelanthropus as part of a gradual evolution towards an upright posture. It reveals crucial insights into these transformative changes,” Hawkes commented.
However, Zanoli contended, stating, “Most of the evidence aligns Sahelanthropus with traits seen in African great apes, suggesting its behavior was likely a mix between chimpanzees and gorillas, distinct from the habitual bipedalism of Australopithecus and Homo.
Explore the Origins of Humanity in South-West England
Join a gentle walking tour through the Neolithic, Bronze Age, and Iron Age, immersing yourself in early human history.
In celebration of the 25th anniversary of the International Gemini Observatory’s completion, students in Chile chose the Gemini South Telescope to capture an image of NGC 6302, also known as the Bug Nebula or Butterfly Nebula (Caldwell 69).
This image captured by the Gemini South Telescope showcases the planetary nebula NGC 6302. Image credit: International Gemini Observatory / NOIRLab / NSF / AURA / J. Miller & M. Rodriguez, International Gemini Observatory & NSF’s NOIRLab / TA Rector, University of Alaska Anchorage & NSF’s NOIRLab / M. Zamani, NSF’s NOIRLab.
NGC 6302 is a planetary nebula situated 2,417 light-years away in the constellation Scorpius.
“Planetary nebulae are a type of emission nebula formed by a massive star at the end of its lifecycle, shedding material and surrounded by an expanding, glowing shell of ionized gas,” stated astronomers at the International Gemini Observatory.
“These intriguing structures usually have a circular, planet-like appearance, which is how they earned the name ‘planetary nebulae’ from early astronomers who observed them through telescopes.”
While various dates are associated with the discovery of NGC 6302, a 1907 study by American astronomer Edward E. Barnard is commonly credited, though it could have been discovered earlier in 1826 by Scottish astronomer James Dunlop.
This nebula is characterized by an extremely complex dipolar morphology, highly excited gases, elevated molecular weight, and the presence of crystalline silicate dust.
Its butterfly shape extends over two light-years, roughly half the distance from the Sun to Proxima Centauri.
“In recent images obtained from the Gemini South Telescope, the glowing ‘wings’ of the Butterfly Nebula appear to emerge from the interstellar medium,” the astronomers explained.
“This visually stunning object was chosen by Chilean students for the 8.1-meter telescope as part of the Gemini First Light Anniversary Image Contest.”
“This competition engaged students at the Gemini telescope site, honoring the legacy established by the International Gemini Observatory since its first light in November 2000.”
In 2009, astronomers utilized the Wide Field Camera 3 on the NASA/ESA Hubble Space Telescope to identify the central star of NGC 6302 as a white dwarf. This star shed its outer layers over 2,000 years ago and now possesses about two-thirds the mass of the Sun.
It ranks as one of the hottest known stars, with a surface temperature exceeding 250,000 degrees Celsius (450,000 degrees Fahrenheit), indicating it must have formed from a substantially large star.
Further investigation of NGC 6302 uncovers a dramatic formation history.
Before its transformation into a white dwarf, the star was a red giant approximately 1,000 times the diameter of the Sun.
This massive star expelled its outer gas layer, moving outward from the equator at a relatively slow rate, forming a dark donut-shaped band still observable around the star.
Other gases were expelled perpendicular to this band, restricting outflow and creating the bipolar structure visible today.
As the star evolved, it released strong stellar winds that pierced its “wings” at speeds exceeding 3 million kilometers per hour (1.8 million miles per hour).
This combination of slow and fast-moving gases further sculpted the “wings,” revealing a vast terrain of cloudy ridges and pillars.
Now, as a white dwarf, the star emits intense radiation that elevates the temperature of NGC 6302’s “wings” to over 20,000 degrees Celsius (approximately 35,000 degrees Fahrenheit), causing the gas to glow.
“Dark red areas in the image represent regions of energized hydrogen gas, while deep blue spots indicate regions of energized oxygen gas,” the researchers mentioned.
“These materials, alongside other elements like nitrogen, sulfur, and iron discovered in NGC 6302, are critical for forming the next generation of stars and planets.”
Illustration of Faraday’s experiment demonstrating the polarization of light by a magnetic field
Enrique Sahagun
In 1845, physicist Michael Faraday presented the first direct evidence linking electromagnetism and light. This connection has proven to be even more substantial than Faraday anticipated.
During his experiment, Faraday directed light through a glass containing a boric acid and lead oxide mixture placed within a magnetic field. He observed that this altered the light, resetting its polarization direction upon exiting the glass.
For the last 180 years, it has been widely accepted that light acts as an electromagnetic wave, with the “Faraday effect” illustrating how interactions between the magnetic field, charges in the glass, and the light’s electric component result in the rotation and alteration of the light waves as they enter the material.
Interestingly, it has long been assumed that the magnetic component of light has minimal involvement in the Faraday effect. However, Amir Capua and Benjamin Assulin, a research team from the Hebrew University in Jerusalem, Israel, has demonstrated otherwise.
“We now comprehend that the secondary component of light interacts with matter,” Capua states.
Capua explains that two main reasons deterred researchers from exploring the magnetic component of light’s involvement in the Faraday effect. First, magnetic forces within materials such as Faraday glass seem relatively weak compared to electrical forces. Second, when a material like Faraday glass is magnetized—aligning the quantum spins of its components with the magnetic field—these spins typically do not synchronize with the light wave’s magnetic component, indicating a weak interaction.
However, Capua and Assulin discovered that if the magnetic component of the light is circularly polarized (spiral-shaped), it may interact more strongly with the magnetic spins within the glass. They concluded that this is due to the magnetic component of light consisting of several corkscrew waves, even without deliberate manipulation.
Calculations by the two researchers revealed that if Faraday’s experiment were replicated using a magnetic material called terbium gallium garnet (TGG) instead of glass, this magnetic interaction could account for 17 percent of the Faraday effect when visible light passes through. Moreover, if infrared light were used with TGG, magnetic interactions might contribute up to 70 percent of the observed Faraday effect.
Igor Rozhansky, a researcher at the University of Manchester, UK, states that the new calculations are compelling and suggest promising experimental evaluations in the future. The previously overlooked magnetic component of the Faraday effect could provide researchers with innovative approaches to manipulate spin in materials, Rozhansky notes. He further mentioned that it remains an open question whether this effect may surpass the conventional Faraday effect in certain materials.
Future experiments could reveal discoveries extending from fundamental physics to practical applications. Capua envisions potential uses for the interaction between the magnetic spin of some materials and the magnetic component of light, which could lead to advancements in spin-based sensors and data storage technologies.
Science of the Renaissance: Italy
From Brunelleschi and Botticelli to polymaths like Leonardo da Vinci and Galileo Galilei, delve into the remarkable scientific minds and discoveries of the Renaissance that solidified Italy’s position at the forefront of scientific innovation.
Illustration of Faraday’s Experiment Revealing the Polarization of Light by a Magnetic Field
Enrique Sahagun
In 1845, physicist Michael Faraday provided groundbreaking evidence connecting electromagnetism and light. This relationship has proven to be stronger than Faraday initially anticipated.
During his experiment, Faraday directed light through a mixture of boric acid and lead oxide contained in a magnetic field. He noticed a shift in the light, with its polarization direction being altered upon exiting the glass.
For the last 180 years, it has been a widely held belief that light acts as an electromagnetic wave, with the “Faraday effect” illustrating how the interplay of the magnetic field, the charge within the glass, and the electric component of light causes a rotation and deviation in the direction of light waves once they leave the material.
Surprisingly, scholars have long assumed that the magnetic aspect of light has little impact on the Faraday effect. However, Amir Capua and Benjamin Assulin from the Hebrew University in Jerusalem, Israel, have demonstrated otherwise.
“We now recognize that the secondary aspect of light interacts with matter,” explains Capua.
Capua notes two reasons why the magnetic component of light’s involvement in the Faraday effect has been overlooked. Firstly, the magnetic forces present in materials like Faraday glass seem significantly weaker compared to their electrical counterparts. Secondly, when a substance such as Faraday glass is magnetized, the quantum spins of its constituents behave like miniature magnets and often fail to synchronize with the magnetic component of the light wave, implying minimal interaction.
However, Capua and Assulin realized that if the magnetic component of light is circularly polarized (spiral or corkscrew-shaped), it may engage more effectively with the magnetic spins within the glass. They reached this conclusion based on the observation that light’s magnetic component naturally comprises several corkscrew waves without needing any specialized manipulation.
The researchers’ calculations indicate that repeating Faraday’s experiment using a magnetic material called terbium gallium garnet (TGG) in place of glass could account for 17 percent of the Faraday effect noted when visible light travels through it. When infrared light traverses the TGG material, magnetic interactions could explain as much as 70 percent of the resulting Faraday effect.
Igor Rozhansky from the University of Manchester, UK, asserts that these new calculations are compelling and point towards feasible experimental inquiries. The previously overlooked magnetic component of the Faraday effect could unveil new methods for controlling spin within materials, according to Rozhansky. He suggested it remains an open question whether this effect might surpass the traditional Faraday effect in certain materials.
Future experiments may yield groundbreaking findings, spanning from fundamental physics to practical applications. Capua envisions the possibility of utilizing the interaction between the magnetic spin of select materials and the magnetic component of light to manipulate materials, potentially leading to innovative spin-based sensors and data storage systems.
Science of the Renaissance: Italy
Explore the great scientific minds and breakthroughs of the Renaissance, from Brunelleschi and Botticelli to polymaths like Leonardo da Vinci and Galileo Galilei, and discover Italy’s pivotal role in shaping scientific inquiry.
They are salisbury novichok addict uncovering a murder suspect or even identifying a sexual predator. The research offers fresh insights into why superrecognizers excel at facial recognition.
Previous studies indicate that individuals with exceptional facial recognition skills observe more regions of the entire face compared to average individuals.
Recently, researchers have employed advanced AI techniques to reveal how this perspective enhances their capabilities.
“It’s not solely about seeing everything, it’s about using your vision intelligently,” stated the lead author of the study, Dr. James Dunn from UNSW Sydney.
In their experiment, participants viewed both images of entire faces and segmented images focusing on the regions they were examining.
In this new research, the team utilized this data to reconstruct the visual information that was available to the participants’ eyes.
This “retinal information” was processed through a deep neural network (DNN), an AI system trained for facial recognition. Participants provided the AI with either a complete image of the same face they had seen or a different one.
In all instances, the AI generated a score indicating how closely the retinal information matched a given complete facial image.
The research team compared outcomes between typical participants and super-recognizers, along with data drawn from randomly chosen areas of the initial facial images.
The findings indicated that the AI system’s effectiveness improved as the visibility of the observed facial feature increased.
Moreover, across all levels of visibility, the AI performed optimally when relying on retinal data from superrecognizers.
“This suggests that variations in facial recognition capability are partly due to our active exploration and sampling of visual data, rather than just post-processing by the brain,” Dunn remarked.
The team then examined whether their findings simply indicated that superrecognizers looked at more areas of the face and gathered more data.
However, they discovered that even when the same amount of retinal information was captured, the AI performed better with data from super-recognizers.
“Their advantage lies not only in the quantity but also in the quality of information,” says Dunn. “They focus on areas that provide more identity cues, making each ‘pixel’ they select significantly more valuable for facial recognition.”
Dr. Rachel Bennett, a facial processing expert from Brunel University in London who was not involved in the study, praised the research.
“The key contribution to understanding super-recognition is that effective facial recognition isn’t only about examining specific areas or spending more time looking at the face. Super-recognizers explore not just larger areas, but also gather more advantageous data,” she asserted.
Dr. Alejandro Estudillo from Bournemouth University noted that the study was conducted by showing participants still images in highly controlled environments.
“It will be crucial to see if the same patterns emerge in more natural, dynamic contexts,” he said.
This study implies there are strategies to enhance facial recognition; however, it seems unlikely that anyone can train to become a super-recognizer.
“At present, we cannot determine if these eye movement patterns can be effectively trained,” Bennett remarked.
Dunn stated that research indicates super-recognition is likely influenced by genetics and is often inherited.
“Superrecognizers appear to instinctively identify the most crucial features. This is challenging to teach, as it differs from one face to another,” he explained.
Researchers have created a free test to help identify supercognitive traits: New South Wales face test.
What is the quantum nature of time? We may be on the verge of discovering it
Quality Stock / Alamy
How does time manifest for a genuine quantum entity? The most advanced clocks can rapidly address this query, enabling us to test various ways to manipulate and alter the quantum realm, thereby delving into the uncharted territories of physics.
The notion that time can shift originates from Albert Einstein’s special theory of relativity. As an object approaches the speed of light, it appears to experience time more slowly compared to a stationary observer. He expands upon this with a general theory of relativity, which demonstrates a similar temporal distortion in the presence of a gravitational field. Igor Pikovsky from the Stevens Institute in New Jersey and his team aim to uncover whether a similar effect occurs within the microscopic quantum landscape, utilizing ultra-cold clocks constructed from ions.
“The experiments we’ve performed until now have always focused on classical time, disregarding quantum mechanics,” says Pikovsky. “We’ve observed a regime where conventional explanations falter with an ion clock,” he continues.
These clocks consist of thousands of ions cooled to temperatures nearing absolute zero via laser manipulation. At such low temperatures, the quantum state of an ion and its embedded electrons can be precisely controlled through electromagnetic forces. Thus, the ticks of an ion clock are governed by the electrons oscillating between two distinct quantum states.
Since their behavior is dictated by quantum mechanics, these instruments provided an ideal platform for Pikovsky and his colleagues to investigate the interplay between relativistic and quantum phenomena on timekeeping. Pikovski mentions that they’ve identified several scenarios where this blending is evident.
One example arises from the intrinsic fluctuations inherent in quantum physics. Even at ultra-low temperatures, quantum objects cannot be completely static and instead must oscillate, randomly gaining or losing energy. Team calculations indicated that these fluctuations could lead to extended clock time measurements. Although the effect is minute, it is detectable in current ion clock experiments.
The researchers also mathematically analyzed the behavior of ions in a clock when “compressed,” resulting in “superpositions” of multiple quantum states. They found that these states are closely linked to the motion of the ions, influenced by their internal electrons. The states of ions and electrons are interconnected at a quantum level. “Typically, experiments necessitate creative methods to establish entanglements. The intriguing aspect here is that it arises organically,” explains team member Christian Sanner from Colorado State University.
Pikovski asserts that it is intuitive to think that quantum objects existing in superposition cannot simply perceive time linearly, though this effect has yet to be experimentally confirmed. He believes it should be achievable in the near future.
Team member Gabriel Solch from the Stevens Institute of Technology mentions that the next step is incorporating another crucial aspect of modern physics: gravity. Ultra-cold clocks can currently detect temporal extensions caused by significant variations in the Earth’s gravitational pull, such as when elevated by a few millimeters, but the exact integration of these effects with the intrinsic quantum characteristics of the clock remains an unresolved question.
“I believe it is quite feasible with our existing technology,” adds David Hume from the U.S. National Institute of Standards and Technology, Colorado. He highlights that the primary challenge is to mitigate ambient disturbances affecting the clock to ensure it doesn’t overshadow the effects suggested by Pikovsky’s team. Successful experiments could pave the way for exploring unprecedented physical phenomena.
“Such experiments are thrilling because they create a platform for theories to interact in a domain where they could yield fresh insights,” remarks Alexander Smith at St. Anselm College, New Hampshire.
Tektite forms almost pure glass (with minimal crystalline inclusions) when space debris impacts the Earth, causing surface materials to melt and be ejected hundreds or thousands of kilometers away.
Map of Ananguite strown field based on Tektite location. Image credit: Musolino et al. , doi: 10.1016/j.epsl.2025.119600.
“Tektite is a specific type of glass formed by impacts, recognized particularly for its distribution across extensive spray fields far from the source crater,” stated Professor Fred Jordan from Curtin University and his team.
“The widespread distribution in Central Europe (14 million years ago), North America (35 million years ago), the Ivory Coast (1 million years ago), and from China to Australia (780,000 years ago) has been traced back to the spread originating from Central Europe, known for four distinct scattered fields located in Central America (800,000 years ago).
“The corresponding tektites include Moldavites, Bediasite-Georgiaite, Ivorites, Australiasites, and Belizites, respectively.”
A newly identified type of Tektite, called Ananguite, has been found primarily in South Australia.
“Discovering a new Tektite field is akin to opening a new chapter in Earth’s tumultuous geological history,” remarked Professor Jourdan.
“These glasses are indigenous to Australia and reveal ancient impact events previously unknown to us.”
“Each piece acts as a small time capsule from the depths of our planet’s history.”
“What adds intrigue to these findings is that, despite the considerable impact, the crater has yet to be located.”
“Understanding when and how frequently large asteroids strike Earth can also assist in evaluating the risk of future impacts, which is vital for planetary defense.”
Photos of six Tektites studied by Musolino et al. Scale bar – 2 mm. Image credit: Musolino et al. , doi: 10.1016/j.epsl.2025.119600.
“The glasses differ from all previously known tektites,” noted PhD candidate Annam Solino from AIX-Marseille University.
“These tektites are distinct due to their unusual chemistry and an approximate age of 11 million years.”
“They indicate a shock event that is completely separate from the fields associated with well-known Australian tektites.”
“While Australian tektites formed roughly 780,000 years ago and have spread across the globe, these tektites are significantly older and suggest major impacts that were previously overlooked.”
The team’s research paper was published in the journal Earth and Planetary Science Letters.
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Anna Musolino et al. 2025. Australia’s new tektite spray field dates back 11 million years, originating from a volcanic arc impact crater. Earth and Planetary Science Letters 670:119600; doi:10.1016/j.epsl.2025.119600
The immense black hole at the center of Radio Quasar RACS J032021.44-352104.1 (shortened to RACS J0320-35) is currently expanding at one of the fastest rates ever recorded.
Artist illustrations and x-ray images from Chandra for Racs J0320-35. Image credits: NASA/CXC/INAF-BRERA/IGHINA et al. / SAO / M. WEISS / N. WOLK.
The black hole residing in RACS J0320-35 has a mass approximately 1 billion times greater than that of the sun.
This system is situated about 12.8 billion light-years away from Earth, meaning astronomers are observing it as it existed just 920 million years after the universe’s inception.
It emits more X-rays than any other black hole identified in the universe’s first billion years.
Black holes are the driving force behind what scientists refer to as quasars.
This luminous giant’s energy is fueled by the significant amount of material that falls into the black hole.
The same research team discovered this black hole two years prior, but further observations from Chandra were required in 2023 to gain more insights.
Data from X-ray observations suggests that this black hole is expanding at a rate that exceeds the typical limits for such objects.
“It was somewhat surprising to observe such a dramatic growth in this black hole,” commented Dr. Luca Idina, an astronomer at the Harvard & Smithsonian Center for Astrophysics.
As material is drawn towards the black hole, it heats up and generates intense radiation across a wide spectrum, including X-rays and optical light. This radiation creates pressure on the infalling material.
Once the falling speed reaches a critical threshold, the radiation pressure counterbalances the black hole’s gravity, making it usually impossible for material to fall inward more rapidly. This upper limit is known as the Eddington limit.
Researchers believe that black holes growing slower than the Eddington limit must originate with solar masses exceeding 10,000, allowing them to achieve a mass of 1 billion solar masses in the early universe.
Such massive black holes may originate from unique processes, often linked to incredibly dense clouds of gas that contain heavier elements than helium.
Interestingly, RACS J0320-35 is expanding at a remarkable speed, estimated to be 2.4 times greater than the Eddington limit, indicating that its formation may have followed a more typical path, beginning with a mass of less than 100 solar masses resulting from massive star explosions.
“By determining a black hole’s mass and growth rate, we can infer its initial size,” said Dr. Alberto Moretti, an astronomer at INAF-Osservatorio Astronomico di Brera.
“This calculation permits us to evaluate various theories regarding the formation of black holes.”
To investigate how rapidly this black hole is growing (at rates between 300 and 3,000 solar masses per year), researchers compared the theoretical model with Chandra’s X-ray spectra, assessing the X-rays emitted at various energy levels.
The findings indicated that Chandra’s spectrum closely matched their expectations based on a model for black holes developing beyond the Eddington limit.
Supporting data from optical and infrared observations further corroborates the conclusion that this black hole is accumulating mass faster than the Eddington limit permits.
“How did the universe generate the first generation of black holes?” mused Dr. Thomas Connor, an astronomer at the Harvard & Smithsonian Center for Astrophysics.
“This is one of the most pressing questions in astrophysics, and this singular object propels our quest for answers.”
Moreover, this research also sheds light on the origins of the jets of particles emitted by some black holes that approach the speed of light, as observed in RACS J0320-35.
“Jets like these are uncommon in quasars, suggesting that the accelerated growth of black holes may play a role in the formation of these jets,” the author remarked.
Their paper is set to be published in the Astrophysical Journal.
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Luca Idina et al. 2025. X-ray investigation of the possibility of Super Eddington accretion in a wireless loudsal of Z = 6.13. apjl 990, L56; doi: 10.3847/2041-8213/aded0a
Rocky, Earth-sized planets in our Milky Way may be surrounded by atmospheres, with new research indicating a strong possibility of liquid water on their surfaces, supporting the potential for life.
Two separate papers, to be released on Monday in the Astrophysical Journal Letters, focus on the TRAPPIST-1 system, which contains seven rocky planets orbiting a single star. Both studies present initial findings from NASA’s James Webb Space Telescope, suggesting that one planet, TRAPPIST-1e, could possess a nitrogen-rich atmosphere, although further research is necessary to confirm this.
These findings represent significant progress in the search for extraterrestrial life both within our solar system and beyond.
Recently, NASA revealed that rock samples from Mars may harbor evidence of ancient microorganisms. Presently, Mars has a thin atmosphere made primarily of carbon dioxide, nitrogen, and argon, but billions of years ago, it likely possessed a much thicker atmosphere that allowed liquid water to exist on its surface.
For quite some time, scientists have maintained that water is a crucial element for life.
For a planet or moon to retain water in liquid form, it must have an atmosphere that prevents instant evaporation into space. This makes the search for exoplanet atmospheres one of the most exciting and promising areas of astronomical research.
“Ultimately, our goal is to identify planets that can support life,” stated Ryan McDonald, an exoplanet astronomer at St Andrews University, Scotland, and co-author of both studies. “To do this, we first need to identify whether these planets have atmospheres.”
The TRAPPIST-1 system is located 40 light-years from Earth and has been extensively studied since its discovery in 2016, as some of its planets may have conditions suitable for extraterrestrial life.
Specifically, TRAPPIST-1e is thought to reside in the so-called “habitable zone,” where liquid water could be present on the surface—not too close to the star to be scorching hot and not too far to freeze.
In a recent study, astronomers utilized NASA’s James Webb Space Telescope to observe four “transits” of TRAPPIST-1e, which occur when the planet passes in front of its star. While the telescope did not directly detect the planet’s atmosphere, it measured how light passing through the atmosphere was absorbed, if one is present.
Like a prism, light can be split into different color bands across the spectrum, and variations in how particular colors are filtered or absorbed can help identify the presence of specific atoms or gas molecules.
For instance, if a specific color is absorbed, it may indicate a high concentration of carbon dioxide, while other color changes could suggest the presence of hydrogen, oxygen, methane, or nitrogen.
“If no color variation is present, the planet is likely just a barren rock,” McDonald noted. “Barren rocks won’t show any color changes in response to light.”
During the four transits, researchers found no signs of a hydrogen-rich atmosphere surrounding TRAPPIST-1e, nor did they observe any indications of a carbon dioxide-rich atmosphere. However, observations from the Webb telescope suggest a potential nitrogen-rich atmosphere.
“This is an exciting development that will significantly narrow down the prospects for a more Earth-like atmosphere,” remarked Caroline Piaulett Graeb, a postdoctoral researcher at the University of Chicago who was not involved in the new research.
Earth’s atmosphere is composed of a significant amount of nitrogen gas. Titan, one of Saturn’s moons, has an atmosphere primarily made of nitrogen and is believed by NASA to harbor a vast underground sea. Although it may be habitable, the methane-rich environment of the moon differs greatly from conditions on Earth.
Piaulet-Ghorayeb, the lead author of a study published last month in the Astrophysical Journal, focused on another planet in the TRAPPIST-1 system, TRAPPIST-1d. This planet is also located within the habitable zone, but the study found no evidence of common Earth-like molecules such as water, carbon dioxide, or methane.
Studying these distant worlds poses significant challenges.
The TRAPPIST-1 star is small and exceptionally active, producing considerable background noise that complicates researchers’ efforts. McDonald and his team dedicated over a year to analyzing data from the Webb telescope in order to isolate and identify chemical signatures from TRAPPIST-1e and its star.
To confirm the presence of an atmosphere, McDonald and his colleagues plan to observe TRAPPIST-1e during an additional 15 transits over the coming years.
They are also looking into three other planets, TRAPPIST-1f, TRAPPIST-1g, and TRAPPIST-1h, which are located further out in the system.
This research aims to bring scientists closer to answering some of the most persistent questions regarding exoplanets and the existence of life.
“We have not yet reliably confirmed the atmosphere of rocky planets outside our solar system, but it opens the door to studying temperate planets,” said Piaulett-Ghorayeb. “However, there is still much to explore.”
Exciting indications suggest that one of the planets in the TRAPPIST-1 star system, located around 40 light-years away, may have an atmosphere suitable for life. However, scientists aim to obtain 15 additional images to confirm this.
TRAPPIST-1 is a small red star hosting at least seven planets. Discovered in 2016, it has become a focal point for astronomers hunting for extraterrestrial life, as three of its planets lie within the Goldilocks Zone, where liquid water can exist.
Ryan McDonald from St Andrews University, UK, states that the discovery of TRAPPIST-1 stirred considerable excitement among astronomers. However, subsequent imaging of three exoplanets—two of which are in the Goldilocks zone—did not identify any atmospheres, which was a letdown. Yet, McDonald and his team have maintained a focus on TRAPPIST-1e, situated at the center of this zone, and now hold a positive outlook.
In 2023, McDonald and colleagues utilized the James Webb Space Telescope to examine TRAPPIST-1e and have continued to enhance their images of this world. Through the analysis of starlight alterations as distant planets cross in front of stars, scientists can deduce the composition of atmospheres and identify beneficial life-sustaining chemicals.
Nonetheless, TRAPPIST-1’s classification as a red dwarf complicates these measurements due to its cooler nature compared to our sun. This cooling effect can lead to prevalent atmospheric chemicals like water also existing within the star itself. Consequently, it’s crucial to differentiate TRAPPIST-1e’s atmospheric signals from those of the star’s light. This challenging task requires innovative models and extensive effort. Initial findings suggest that TRAPPIST-1e may possess a life-friendly atmosphere, potentially representing a pivotal moment in the search for habitable conditions in the universe.
“The data exhibits fluctuations in accordance with atmospheric modeling, aligning well with nitrogen-rich atmospheres and possibly including methane,” remarks McDonald. “Among all the spectra collected from the TRAPPIST-1 system, this is the most promising, indicating potential atmospheric components.”
Should the nitrogen-rich atmosphere hypothesis be confirmed in subsequent analyses, McDonald states the next step will be to search for gases such as methane or carbon dioxide and utilize climate models to assess surface temperatures and the potential for liquid water.
However, the researchers caution that current data cannot entirely dismiss the possibility that TRAPPIST-1e is merely a barren rock. Additional observations are imperative. They have data from four JWST observations but aim for an additional 15 in the near future. “We need to minimize the error margins,” comments McDonald.
Matthew Jenge from Imperial College London notes that while many exoplanets are being discovered, astronomers are eager to pinpoint those with conditions conducive to life.
“Complexities arise because a planet can be in the right orbital zone but, with the wrong atmosphere, may become inhospitable like Venus. Astronomers are investigating numerous exoplanets, and eventually, one will likely be found with a nitrogen/oxygen-rich atmosphere. Photosynthesis may be key to achieving oxygen richness,” he says.
“If [TRAPPIST-1e] is habitable, consider what transpired on that planet over the past 7.6 billion years. The older the planet, the higher the likelihood of developing intelligent life,” he adds.
McDonald believes that by 2060, data may reveal multiple planets whose existence is hard to explain without including life forms, though he stresses that proving the existence of extraterrestrial life is still a distant goal. “We remain skeptical,” he concludes.
In August, Paris typically quiets down as many residents scatter across the beaches and shores for their monthly vacation. Businesses close, and the city comes almost to a halt. Among those who stay are the eternal seekers of Paris: on a quest to find a sunlit terrace for their evening Aperitif.
Securing the ideal spot on the sidewalk outside a cafe can often depend on a timely walk or a quick message from friends. This summer, however, digital solutions gained traction with the quintessentially French take on the old Apple motto: “There’s an app for that.” Jveuxdusoleil is an app that tracks the sun’s movement through the city’s maze, pinpointing exactly where you can snag a sunny seat on your cafe terrace. This innovation arrives at a time of particular uncertainty in Paris.
Jean-Charles Levenne, who taught app development in 2020, created Jveuxdusoleil (“I Want Sun”) as a side project to address personal challenges.
Using a solar position algorithm alongside building height data from the open-source mapping platform OpenStreetMap, Levenne’s app highlights sunny terraces while dimming those in shadow. Users can update the app for new spots or corrections (e.g., trees casting unexpected shadows), thus turning it into a continually evolving and community-driven tool. While the technology is applicable in other cities, most of the app’s terraces are in Paris, which Levenne believes makes it particularly beneficial.
“The app functions globally, but initially focused on Paris due to its unique challenges compared to other French cities,” he remarked. “Finding a sunny spot can be tricky because of the narrow streets and towering buildings.”
The terrace acts as a vantage point to take in the essence of Paris. Chairs are typically arranged facing the street rather than each other, allowing patrons to observe the bustling world around them. The absence of a strong tipping culture in France reduces the urgency for quick table turnover, allowing customers to savor just a drink and linger for hours. For many Parisians, the terrace becomes a second living room.
Pierric Bourgot, a photographer and journalist with about 20 published books, has created a documentary on French bistro culture, emphasizing that the Paris terrace offers one of the city’s most authentic perspectives.
“The terrace embodies a specific concept of Art de Vivre (the Art of Living), as we say in France; it’s a space where diverse groups gather,” Bourgot explained. “You’re not enclosed; you’re somewhat in the street, one foot inside and one foot outside. You’re immersed in the city and the vibrancy of life.”
Searching for the sun after the darkest winter in decades
Jveuxdusoleil’s user base has consistently grown since its launch, now boasting over 1,300 active users weekly, and that number was mirrored during interviews with Levenne. Usage spikes in spring, as Parisians yearn for sunlight after enduring months of a dreary winter.
This year, Jveuxdusoleil experienced a surge, reaching nearly 20,000 visitors in a single week in early March, following a grim 2024 winter, which was noted as the darkest in three decades. Paris, in particular, struggled with multiple stretches of days without sunlight. Jveuxdusoleil remains a passion project for Levenne, who has not profited from it and says, “Actually, it costs money to maintain a server.”
The Parisian photographer I spoke with remarked that the intricate nature of Jveuxdusoleil is part of its charm—using the app to locate a sunny street for a photo while enjoying a drink with friends. Its functionality is streamlined, featuring a single slider to set the time and sunlight, positioning it as an accessible app for everyone.
Can an app revive the declining terrasse culture?
While the user base of Jveuxdusoleil isn’t universally widespread, many young French individuals I encountered on the terraces of Paris had not heard of the app. Yet its existence represents a digital embrace of French bistro culture at a pivotal moment.
According to French Heritage Inventory documents filed in May 2024, the number of French bistros has decreased from 500,000 in 1900 to fewer than 40,000 today. The document notes that Paris has seen a drop from 5,000-6,000 bistros in the 1970s and 1980s to just over 1,000 currently. The Alliance of French Bistro Owners has successfully sought national recognition in September 2024, and has been campaigning since 2018 for UNESCO World Heritage status.
Bourgault attributes this “genocide” to the significant reduction in French bistro density over the past century, faced with relentless threats—exemplified by the shift from 100 bistros per 100,000 people to just 1 per 2,000. The proliferation of cars and highways has redirected traffic away from such venues nationwide, while television, smartphones, and digital communication have lessened the need for socializing on local terraces. Additionally, bistro owners cite globalization and changing consumer preferences as threats to bistro culture.
A law passed in 1941 prohibited the establishment of new cafes, allowing the acquisition of existing licenses only. This stagnation has rendered these establishments particularly vulnerable, especially in Paris, where property prices have surged. French commentators have long decried the “Americanization of Paris,” noting that traditional bistros are increasingly overshadowed by the rapid expansion of McDonald’s and other chain restaurants as habitual meeting spots for many young people.
Pierric noted that technological advances have also played a role in the decline of bistros. People now order deliveries via their phones and when they do venture out, they frequently stay glued to their devices instead of engaging with strangers at the comptoir. He pointed out that the app could actually revitalize Parisian bistro culture.
“Its geographical visualization grounds you in the real world, emphasizing that we are here on Earth,” he stated.
“When encountering friends at the bistro for drinks, we don’t meet in the ether. We gather in a cafe rich with personality, character, and decor. What’s more, we are aware that we are not just two AIs exchanging data protocols. We engage face to face, and it feels undeniably real.”
The White Dwarf represents the compact core that forms when stars exhaust their fuel and collapse. These remnants are the ashes of Earth-sized stars, typically about half the mass of the Sun, composed of carbon-oxygen cores surrounded by layers of helium and hydrogen. Utilizing far-ultraviolet data from the NASA/ESA Hubble Space Telescope, astronomers have identified carbon in the atmosphere of the famously large white dwarf WD 0525+526. They also determined that the overall mass of hydrogen and helium in the star’s atmosphere was significantly lower than anticipated based on single-star evolution.
An illustration of a merger with a white dwarf sub-huge star (size without scale) that would have occurred in the past. Image credit: Snehalata Sahu/Warwick University.
WD 0525+526 is located approximately 130 light years away in the constellation Auriga.
With a mass exceeding that of our Sun by 20%, this white dwarf is classified as a super-genocide, and its formation process remains poorly understood.
Typically, such white dwarfs form from the collapse of massive stars. However, Hubble’s UV data indicates that WD 0525+526 has a hydrogen-rich atmosphere originating from its core.
“In optical light, WD 0525+526 appears to be a massive yet typical white dwarf,” remarked Sneharata Saff, an astronomer at the University of Warwick.
“However, the ultraviolet observations from Hubble allowed us to detect faint carbon signatures that optical telescopes could not observe.”
“The presence of a small amount of carbon in the atmosphere suggests that this massive white dwarf is likely the product of a merger between two stars.”
“We also believe that many similar merged remnants may pose as white dwarfs in a predominantly hydrogen atmosphere.”
“Only ultraviolet observations can reveal them to us.”
Typically, hydrogen and helium create dense, barrier-like layers around the white dwarf core, concealing carbon-rich elements.
In a stellar merger, the hydrogen and helium enveloping layers can burn away almost entirely as the stars combine.
The resulting single star possesses a very thin envelope that does not prevent carbon from surfacing, which is precisely what is observed in WD 0525+526.
“We found that the hydrogen and helium layers are around one billion times thinner than those typical of a white dwarf,” noted Antoine Bedard, an astronomer at Warwick University.
“We believe these layers were stripped away during the merger, allowing carbon to manifest on the surface.”
“However, this phenomenon is also unusual, as the carbon present is about 100,000 times less than that found on the surfaces of other merged remnants.”
“Coupled with the star’s elevated temperatures—nearly four times hotter than the Sun—the diminished carbon levels suggest that WD 0525+526 evolves at a much faster pace than previously observed.”
This discovery will aid in understanding the destiny of binary star systems, which are crucial for related phenomena such as supernova explosions.
Alongside the enigma, this significantly hotter star’s carbon migrates to the surface.
Other merged remnants later cool enough for convection to bring carbon to the surface; however, WD 0525+526 remains too hot for this process.
Instead, the author identified a subtle mixing process known as semiconvection, uniquely observed in this White Dwarf.
This mechanism permits small amounts of carbon to gradually ascend into the star’s hydrogen-rich atmosphere.
“Finding conclusive proof of individual white dwarf mergers is rare,” remarked Professor Boris Gensick from Warwick University.
“Yet, ultraviolet spectroscopy enables us to detect these signals early, while carbon remains invisible at optical wavelengths.”
“Because the Earth’s atmosphere filters out UV rays, such observations must be conducted from space—currently, only Hubble is capable of this.”
“As WD 0525+526 continues to evolve and cool, we anticipate more carbon will emerge at the surface over time.”
“For now, this ultraviolet illumination offers rare insights into the early aftermath of stellar mergers.
Survey results are published today in the journal Nature Astronomy.
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S. Saff et al. The remnants of Hot White Dwarfs revealed by ultraviolet detection of carbon. Nature Astronomy Published online on August 6th, 2025. doi:10.1038/s41550-025-02590-y
The glow within the cluster is the soft luminosity of stars that have been stripped from their galaxy amidst the layers of galaxy clusters.
Abell 3667 is depicted in this Decam image. Image credits: CTIO/NOIRLAB/NSF/AURA/ANTHONY ENGLERT, Brown University/TA Rector, Noirlab/M. Zamani & D of University of Alaska Anchorage & NSF. De Martin, NSF’s Noirlab.
Galaxy clusters comprise thousands of galaxies, varying widely in age, shape, and size.
Typically, they have a mass about 10 billion times that of the Sun.
Historically, galactic clusters were regarded as the largest structures in the universe, spanning hundreds of millions of light-years and including numerous galactic clusters and groups, until superclusters were discovered in the 1980s.
Nonetheless, galaxy clusters still hold the title of the largest gravitationally bound structure in the universe.
“The study of galaxy clusters not only informs us about the formation of the universe, but it also places constraints on the characteristics of dark matter,” stated Brown University astronomer Anthony Englat and his team.
One significant clue astronomers seek to grasp the history of galactic clusters is the light within the cluster. This faint glow is emitted by stars that have been stripped from their original galaxy due to the immense gravitational forces of the forming galaxy cluster.
These stars provide evidence of past galactic interactions, although most current telescopes and cameras face challenges in detecting them.
The subtle intra-cluster light from the galaxy cluster Abel 3667 shines vividly in new images created from a total of 28 hours of observation at 570 megapixels using the Dark Energy Camera (Decam) at NSF’s M. Blanco 4-M Telescope, a program of NSF’s Noirlab at Cerro Tololo Inter-American Observatory.
“Abell 3667 is located over 700 million light-years away from us,” the astronomer mentioned.
“Most of the faint light sources in this image are distant galaxies, not foreground stars from our own Milky Way.”
“In Abell 3667, two small galaxy clusters are currently merging, as evidenced by the luminous bridge (yellow) of stars extending toward the center of this image.”
“This bridge is formed from material stripped off from the merging galaxies, forming one massive conglomerate known as the brightest cluster galaxy.”
“Not only does this sparkling sky encompass distant galaxies, but it also highlights faint foreground features due to the prolonged exposure.”
“The Milky Way’s hair follicles, or integrated flux nebula, consist of faint clouds of interstellar dust that appear as soft bluish chains crossing the image.”
“These structures are patches of dust that are illuminated by the light of the stars within our own galaxy.”
“They present as diffuse, filamentous formations that can span extensive areas of the sky.”
Survey results will be published in the Astrophysics Journal Letter.
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Anthony M. Engrat et al. 2025. Announcing optical bridges in Abel 3667 in-cluster light: LSST precursor data. apjl 989, L2; doi: 10.3847/2041-8213/ade8f1
For those years that seem to linger without fading away—marking the conclusion of the 25th 007 film and representing Daniel Craig’s iconic portrayal of the beloved spy—there remains no successor ready to don the tuxedo, order a martini, or take the wheel of an Aston Martin. At least, it’s not yet in cinemas. However, for the first time in Bond history, audiences will encounter the new James Bond in video games before he makes his film debut.
Crafted by the Danish studio IO Interactive for the upcoming 007 First Light, the new Bond has a strikingly handsome yet doll-like appearance. His fresh face and bright blue eyes are a departure from Craig’s rugged charm, as they lean more towards a youthful innocence rather than sharp intensity. This iteration of Bond doesn’t reject these classic traits but rather embraces them. First Light serves as an origin tale, designed to redefine one of entertainment’s most enduring protagonists for a new generation of gaming fans.
“We decided to start with origins so we could explore questions like, ‘Who was James Bond as a youth, and what does it mean to be a 00 agent?’ What does it truly signify to be 007?”
Historically, most James Bond video games have leaned heavily into the shooter genre, heavily inspired by the classic 1997 Nintendo 64 title, GoldenEye 007. Despite the ongoing success of the first-person shooter genre, the 007 games saw diminishing returns, with lackluster reviews and declining sales for 2012’s 007 Legends effectively sidelining Bond’s video game career—until IO approached Eon Productions with an exceptional concept.
“There’s an exciting shootout in the film, but if we really think about it, there isn’t that much,” Elverdam remarks. Addressing the discrepancies between the film and the game became a fundamental aspect of IO’s pitch, with the intent of allowing players to embody characters outside the constraints of cinema.
This was a familiar process for IO, which, between 2016 and 2021, successfully redefined the Hitman series—a franchise centered around elite contract killers. With a remarkable awareness of what worked in the previous Hitman games (focusing on strategic planning and problem-solving rather than gratuitous violence) and discarding the elements that did not resonate (such as convoluted narratives), the results were astounding: a series of endlessly replayable puzzles that allowed players to vanish without a trace. The satirical, clever tone of Hitman: The World of Assassination became a standout hallmark for IO.
“All of these elements [from Hitman],” Elverdam mentions, “if we adapt and innovate those, we can create a true Bond experience. These innovations should encompass driving, stealth, and yes, shootouts.”
“It’s not just about shooting”… Bond ventures onto the road with 007’s First Light.
Photo: IO Interactive
The title fits perfectly, as this game represents the first flicker of hope for a cherished franchise that has faced challenging times. Announced initially as Project 007 in November 2020, the game has persevered through Bond’s turbulent waters, a situation that began with a $8.45 billion (£6.3 billion) merger between MGM, the studio behind Bond, and Amazon in March 2022. Barbara Broccoli and Michael G. Wilson helm this family business.
In February, Broccoli and Wilson ceded creative control to Amazon as part of a major contract, effectively ending the Broccoli family’s 63-year stewardship of the Bond film franchise. Since then, Amazon has begun to outline its plans, including hiring Denis Villeneuve to direct the next installment. The world is now watching and waiting for a casting decision, eager to see what this transition means for one of cinema’s most lucrative franchises.
However, while the upcoming film unfolds, the new game possibly holds the potential to leave a lasting mark. The 007 First Light Trailer doesn’t reveal much, yet it builds excitement. It’s a montage that rekindles everything fans adore about 007—the intricate traps and gadgets reminiscent of the Roger Moore era, coupled with the formidable physical presence of Craig’s portrayal and the charming attitude that has unified all iterations of the character.
Everything fans cherish about the series. Photo: IO Interactive
“To truly pursue high ambitions, it’s essential to examine various Bond installments, understand the essence of each, and infuse your unique perspective,” Elverdam states.
The creative director for First Light is keen to discuss Bond’s essence but remains tight-lipped regarding certain specifics of his version. For instance, the identity of the voice actor portraying Bond is still under wraps. Nevertheless, Elverdam acknowledges that due to Bond’s lasting appeal, he is a character not easily thrust into contemporary narratives.
“Each Bond represents the zeitgeist of their era, regardless of your intentions. That’s simply how it is,” he explains. “What is perceived as a threat, or desirable qualities, inevitably evolves over time.” Elverdam poses several thought-provoking questions that IO considers as they craft their rendition of Bond: When do you improvise? What does it mean to serve a king and a kingdom? Why engage in such tasks in the first place?
If Elverdam and IO adeptly address these queries, they may well establish a closer connection to the next film’s Bond than one might expect.
Paleontologists have extracted ancient enamel protein sequences from fossilized teeth of epiacaratherium sp., a nasal bacteria that thrived in the High Arctic of Canada between 240 and 21 million years ago (early Miocene). This recovered sequence enabled researchers to ascertain that this ancient rhino diverged from other syoxidants during the mid-Eocene Oligocene period, approximately 410-250,000 years ago. Additionally, the findings illuminate the distinctions between two principal subfamilies of rhinocerotinae and Rhinocerotinae, indicating a more recent division of bone development around 340-22 million years ago.
Reconstruction of three extinct rhinoceros species: foreground features a Siberian unicorn (Elasmotherium sibiricum), accompanied by two Merck rhinos (Stephanorhinus kirchbergensis); In the distant background is a wooly rhino (Coelodonta antiquitatis). Image credit: Beth Zaiken.
Dr. Mark Dickinson and his team from York University investigated the teeth of epiacaratherium sp. They utilized a method known as chiral amino acid analysis, which aids in understanding how these proteins were preserved over time.
By assessing the degree of proteolysis and comparing it with previously studied rhino material, they confirmed that the amino acids originated from the teeth themselves, not from subsequent contamination.
“It’s astounding that these techniques allow us to revisit the past and delve deeper,” Dr. Dickinson remarked.
“Armed with our understanding of ancient proteins, we can now pose intriguing new questions regarding the evolution of ancient life on Earth.”
The rhinoceros holds particular significance as it is currently categorized as an endangered species. Exploring its extensive evolutionary history offers vital insights into how past environmental shifts and extinctions have influenced present biodiversity.
Historically, scientists have depended on the morphology of fossils or, more recently, ancient DNA (aDNA) to reconstruct the evolutionary narratives of long-extinct species.
Nonetheless, aDNA typically does not last more than a million years, constraining its utility in unraveling deep evolutionary history.
Although ancient proteins have been detected in Miocene fossils, previous samples extending back over 4 million years had been constrained to roughly the last 10 million years—full sequences were necessary for robust reconstructions of evolutionary lineages.
The latest research significantly broadens this temporal scope, indicating that proteins may endure across extensive geological timescales under optimal conditions.
“Success in analyzing ancient proteins from such old specimens provides fresh perspectives for scientists globally, who possess remarkable fossils in their collections,” stated Dr. Fazeera Munier of York University.
“This crucial fossil aids our understanding of the distant past.”
The results were published in the journal Nature this week.
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RS Patterson et al. Phylogenetically significant proteins from the early Miocene era. Nature Published online on July 9, 2025. doi:10.1038/s41586-025-09231-4
Exposure to light at night significantly raises the risk of heart disease, according to extensive research.
Various environmental and behavioral signals synchronize the body’s circadian rhythms, the internal clocks that manage physiological functions. However, contemporary lifestyles often disrupt these biological mechanisms, heightening sensitivity to health issues.
Previous studies utilizing satellite data have indicated associations between residents of brightly lit urban areas and heart disease, focusing solely on outdoor light at night. Daniel Windred, from Flinders University in Adelaide, and his team sought to determine if overall light exposure impacts cardiovascular health.
They monitored approximately 89,000 individuals without pre-existing cardiovascular conditions, equipping them with light sensors for a week between 2013 and 2016. “This represents the largest research effort on personal light exposure patterns affecting cardiovascular health to date.”
The sensors captured both natural and artificial light sources, including emissions from mobile phones. Over the eight-year period, participants who experienced the brightest nights showed a 23-56% increased risk of developing cardiovascular disease compared to those exposed to darker nights.
For example, individuals in the highest light exposure category included those who activated overhead lights for an hour from midnight to 6 AM. “This scenario places them within the 90th to 100th percentiles of nighttime light exposure,” Windred noted. He emphasized that the body continues to react to artificial light even after it is turned off, and short exposures can disrupt circadian rhythms.
Researchers accounted for factors such as gender, age, smoking habits, and shift work. They also demonstrated that the connection between light exposure and heart disease risk remained constant, regardless of sleep duration, sleep efficiency, or genetic predisposition.
Interestingly, although women generally have a lower incidence of heart disease at the same age as men, exposure to bright nighttime light can neutralize this protective effect due to estrogen. Evidence suggests that women experience more significant melatonin suppression in response to bright light, making their circadian systems more sensitive compared to men.
Disruption of circadian rhythms can compromise glucose tolerance, elevating the risk for type 2 diabetes, which is a risk factor for heart disease. Such disruption also influences blood pressure and can increase the risk for abnormal cardiac rhythms due to conflicting signals between the brain and heart.
“The significance of these findings must not be understated,” stated Martin Young from the University of Alabama at Birmingham. “As a 24/7 society increasingly disrupts our circadian systems, this study underscores the notable health risks linked to such exposure.”
Windred suggests that individuals strive to maintain a darker nighttime environment. “Optimize your sleep schedule to ensure darkness during bedtime. If you awaken during the night, utilize dim lighting and avoid bright overhead lights.”
3D Models of Skulls from Modern Humans and Neanderthals
Courtesy of Kimberly Anne Plomp
Abnormalities in the skull that compress the lower brain can lead to headaches and various neurological issues, potentially passed down from Neanderthals.
Individuals with Chiari malformations possess a smaller, flatter skull base near the spine junction, causing the cerebellum to be pressed into the neck’s spinal canal.
Type 1 Chiari malformations, which are the least severe, may impact about 1 in 100 individuals. Symptoms can include headaches, neck pain, sleep apnea, and numbness, although some may remain asymptomatic.
Approximately 15 years ago, Yvens Barbosa Fernandes, a neurosurgeon at Campinas State University in Brazil, observed that the skull base of his Chiari patients bore resemblance to Neanderthal specimens from the European Museum, particularly the gentle slopes of the occipital bone where the cerebellum rests. Neanderthals had larger brains than modern humans, yet their skulls were more oblique at the foreheads and bases, resulting in a flatter shape compared to the rounder modern human skulls.
In 2013, Barbosa Fernandes published his hypothesis, suggesting that the shape of Chiari skulls could have a genetic link to an extinct human species, Homo sapiens. “In Chiari’s case, I began to consider a lost connection between anthropology and medicine,” he stated.
Motivated by this theory, Kimberly Plomp from the University of the Philippines in Quezon City and her team created digital 3D models of 46 Chiari 1 skulls and 57 unaffected skulls using CT scans. Their comprehensive mathematical analysis confirmed that the Chiari-affected skulls exhibited more cerebral compression at a flat angle at the base where the cerebellum is located.
Subsequently, the group compared these recent skulls with digital models of eight fossilized heads from Homo Neanderthalensis, Homo Erectus, Homo Heidelbergensis, and ancient Homo sapiens.
They discovered that the skull base measurements of Neanderthal heads closely matched those of modern humans with Chiari, while the skull bases of all other ancient species resembled typical modern humans without Chiari. “This underscores the notion that these modern humans may share Neanderthal characteristics,” suggesting another way Neanderthal genes could influence our health.
For Barbosa Fernandes, this research offers solid backing for his hypothesis. “It makes sense; a less pronounced angle results in less space for the modern human brain,” he noted. “Until now, I lacked scientific evidence to support my theory. This research brings me significantly closer to that proof.”
Looking ahead, the team intends to analyze the DNA of individuals with Chiari malformations in search of Neanderthal genetic markers, according to Plomp.
Other Chiari malformations (types 2-4) are believed to stem from various causes. Type 2 is associated with severe forms of spina bifida, while types 3 and 4 are exceedingly rare and can pose life-threatening risks.
Modern disk galaxies frequently display distinct thin and thick disks. The mechanisms driving the formation of these two discs and the timeline of their emergence are still unanswered questions. To investigate these issues, astronomers examined various epochs (statistical samples of 111 edge-on disk galaxies dating back up to 11 billion years, or approximately 2.8 billion years post-Big Bang) utilizing archived data from the NASA/ESA/CSA James Webb Space Telescope.
Webb/nircam composite images of a quarter of the team’s samples were sorted by increasing redshift. Image credit: Tsukui et al., doi: 10.1093/mnras/staf604.
Present-day disk galaxies often comprise extensive, star-rich outer disks alongside thin, star-like disks.
For instance, the thick discs of the Milky Way reach approximately 3,000 light-years in height, while the thin discs are roughly 1,000 light-years thick.
But what mechanisms lead to the formation of this dual disk structure?
“The thickness of high redshift discs, or unique measurements from the early universe, serve as benchmarks for theoretical research that can only be conducted using Webb,” states Takagi, an astronomer at the Australian National University.
“Typically, older, thicker disk stars are dim, while the younger, thinner disk stars dominate the galaxy.”
“However, Webb’s exceptional resolution allows us to observe and highlight faint older stars, enabling us to distinguish between two disk structures in a galaxy and measure their thickness separately.”
Through an analysis of 111 edge-on targets over cosmological time, astronomers studied both single-disc and double-disc galaxies.
The findings indicate that galaxies initially form a thick disk, which is followed by the formation of a thin disk.
The timing of this process is contingent on the galaxy’s mass: high-mass, single-disk galaxies transitioned to two-disk structures around 8 billion years ago.
In contrast, a thin disk emerged about 4 billion years ago within low-mass, single-disk galaxies.
“This is the first time we’ve resolved a thin star disk at such a high redshift,” remarked Dr. Emily Wysnioski from the Australian National University.
“The novelty becomes evident when observing the onset of thin star disks.”
“It was astonishing to witness a thin star disk from 8 billion years ago, and even further back.”
To elucidate the transition from a single thick disk to a dual-disk structure, as well as the timing differences between high-mass and low-mass galaxies, researchers expanded their investigation beyond the initial edge-on-galaxy samples. They examined data showing the movement of gases from large millimeter/sub-millimeter arrays (ALMAs) in Atacama and ground surveys.
By considering the movement of the galaxy’s gas disks, they found their results aligned with the “turbulent gas disk” scenario.
In this framework, the turbulent gas disks of the early universe catalyze intense star formation, leading to the creation of thick star disks.
As stars form, they stabilize the gas disks, diminishing turbulence and consequently resulting in thinner disks.
Larger galaxies can convert gas into stars more efficiently and thus calm down more quickly than their lower-mass counterparts, leading to the formation of the earlier thin disk.
“This study delineates structural differences between thin and thick discs, but we aim to explore further,” Dr. Tsukui mentioned.
“We look to incorporate the types of information typically acquired from nearby galaxies, such as stellar movement, age, and metallicity.”
“By doing so, we can bridge insights from both nearby and distant galaxies, enhancing our understanding of disk formation.”
Survey results were published in Monthly Notices of the Royal Astronomical Society.
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Takagi Tsukui et al. 2025. The emergence of thin and thick discs of galaxies across the history of the universe. mnras 540(4): 3493-3522; doi: 10.1093/mnras/staf604
Researchers can construct structures that mimic lab black holes
Science Photo Library/Alamy
By shaping light into a liquid-like form, researchers aim to deepen their grasp of black holes and other intriguing phenomena.
Though observing supermassive objects like black holes directly is a challenge, scientists have employed quantum effects to create valuable analogs in laboratory settings. For instance, they have previously simulated space-time with ultra-cold atoms to mimic a black hole’s material.
Now, Kevin Falk from the Kastler-Brossel Laboratory (LKB) in Paris and his team have utilized light to generate highly controlled analogs of space-time.
They achieved this by trapping light within small cavities made of reflective semiconductor materials, allowing it to bounce between layers and interact with the material’s charge. This quantum interaction ultimately converts light into a liquid-like state.
Researchers can manipulate this fluid with lasers to replicate the geometry of space-time, creating structures that correspond to a black hole’s event horizon. The object can fall but will not return.
Their light-based “space” is meticulously controlled, enabling Falk and his colleagues to visualize events and create sudden space-time structures.
They plan to use this unique simulation to investigate how Hawking radiation emitted from black holes varies with abrupt changes in the event horizon. However, achieving this requires cooling and isolating the experiment to amplify the quantum effects involved.
“This work represents a remarkable experimental achievement,” says Juan Ramon Muñoz de Nova from Complutense University in Madrid, who has contributed to initial measurements of Hawking radiation in black hole simulations involving ultracold atoms. He believes these new experiments present opportunities to observe various phenomena, such as how black holes vibrate and produce “ring” effects.
Friedrich Koenig from St Andrews University in the UK notes that this research offers “the most valuable platform” to explore new concepts related to gravity and the complex interplays between gravity and quantum effects.
One striking outcome of this study is the potential to reveal that the observed black holes might not be what they seem. Maxime Jacquet from LKB explains that the first image captured of a black hole by the Event Horizon Telescope may appear authentic, but the visual representation of a black hole may not equate to its true nature.
There could be sizable objects that distort light like black holes, creating a false appearance without an observable event horizon. Theoretical investigations suggest this is feasible, and light-based experiments may allow for further exploration of this possibility, according to Jacquet.
“We must exercise caution. While we have these analogs, fluids and black holes are fundamentally different entities,” warns Falk. “However, this experiment enables us to experiment with testing theories related to black holes.”
With the aid of the NICAM (Near-infrared camera), astronomers aboard the NASA/ESA/CSA James Webb Space Telescope have captured new images of the Sombrero Galaxy.
The new Webb/Nircam image reveals the prominent bulge of the Sombrero Galaxy, which consists of a dense cluster of stars at the galaxy’s center, while dust on the outer rim obscures some starlight. Image credits: NASA/ESA/CSA/STSCI.
The Sombrero Galaxy is situated approximately 28 million light years away in the Virgo constellation.
Also referred to as Messier 104, M104, or NGC 4594, this galaxy was discovered by the French astronomer Pierre Méchain on May 11, 1781.
It has a diameter of 49,000 light years, which is nearly twice that of our Milky Way galaxy.
The Sombrero Galaxy displays features typical of both spiral and elliptical galaxies.
It features a spiral arm and a prominently illuminated central bulge that resembles two hybrid forms.
Viewed edge-on, the Sombrero Galaxy sits at a six-degree angle south of its plane, with the dark dust lane creating a striking visual.
“Researching galaxies like the Sombrero through various wavelengths, including near-infrared with Webb, as well as data from the NASA/ESA Hubble Space Telescope, assists us in understanding the formation and evolution of this intricate system and its constituent materials,” said an astronomer.
“Unlike Hubble’s visible light images, the dust disk is not detectable in Nircam’s new near-infrared imagery.”
“This is because the longer wavelengths of infrared radiation emitted by stars penetrate dust more effectively, resulting in less obstruction of stellar light.”
“In mid-infrared images, the dust actually emits light.”
“Research indicates that the smooth surface and subtle glow of the galaxy hint at a turbulent history,” the astronomer noted.
“Anomalies discovered over the years suggest that this galaxy may have been involved in a violent merger with at least one other galaxy.”
“Spectroscopic analyses reveal unexpected variances among the stars in these globular clusters.”
“Stars that form under similar conditions and from the same materials typically share similar chemical ‘fingerprints,’ such as the same abundance of elements like oxygen or neon.”
“However, the apparent variations among stars in this galaxy’s globular clusters are notably significant.”
“The merging of various galaxies over billions of years can explain these discrepancies.”
“Further evidence supporting the merger hypothesis is seen in the distorted look of the galaxy’s inner disk.”
“While our observations categorize it as edge-on, it actually gives the impression of being at quite an angle,” they added.
“Seen from six degrees off the galaxy’s equator, our viewpoint allows us to glimpse it slightly from above, rather than straight on.”
“From this vantage point, the inner disk appears tilted inward, resembling a funnel rather than a flat plane.”
“Nircam’s advanced resolution reveals parts of the galaxy that look red, indicating the presence of red giants—cooler stars that shine brightly due to their larger surface areas.”
“These red giants are also visible in mid-infrared, but the smaller blue stars in the near-infrared become indistinguishable at longer wavelengths.”
“Additionally, Nircam’s images capture a variety of galaxies in differing shapes and colors scattered across the backdrop of space.”
This color diversity offers astronomers insights into characteristics such as their distances from Earth.
All living beings, including you, emit subtle, etheric, semi-visible light that continues until death. Recent research supports this idea.
This mysterious luminescence might lead one to believe it is an indication of an aura or something similar.
However, Dr. Daniel Oblak, a physicist from the University of Calgary and the study’s lead author, explained to BBC Science Focus that while the concept of an aura is metaphysical and unscientific, the emitted light is not. Known as Ultraweak Photon Emission (UPE), it is a natural byproduct of metabolism.
“I would like to emphasize that UPE usually results from biochemical processes and is thus akin to what occurs with glow sticks.”
“UPE is so faint that it is imperceptible to the human eye and can be completely obscured by other light sources unless in total darkness.”
Don’t think that you can observe your own sparkle simply by closing the curtains and turning off the lights; this light is 1,000 to 1,000,000 times dimmer than what the human eye can detect.
These four mice emitted significantly more ultrweak photon emissions (UPEs) while alive (top) compared to after death (bottom). – Credits: Salari et al, The Journal of Physical Chemistry Letters, 2025
UPE arises when a chemical within a cell creates an unstable molecule, known as a reactive oxygen species (ROS), which is essentially a byproduct of metabolic activity.
As ROS levels increase, other molecules become “excited,” meaning they carry excess energy, and it is this energy that emits light.
The primary factor driving this phenomenon is oxidative stress, a kind of cellular damage caused by aging and disease. The greater the oxidative stress experienced by the body, the more ROS—and consequently, more light—is produced.
“When an organism ceases to live, it halts metabolism, thereby stopping the emission of ultrawave photons,” he remarked.
To investigate UPE, scientists in Calgary measured the UPE generated by immobilized and deceased mice and damaged leaves.
Using specialized cameras, they found that living mice emitted significantly more light than their deceased counterparts. Conversely, the leaves released more light in areas that were damaged compared to intact regions.
This is due to increased oxidative stress in the scratched areas. However, the dead mice did not emit light as their bodies no longer underwent metabolic processes.
The leaves of St. Stwhere were illuminated by scratches and chemical damage. – Credits: Salari et al, The Journal of Physical Chemistry Letters, 2025
Dr. Oblak highlighted that the significance of UPE lies in its ability to provide a non-invasive method to assess the health of living organisms.
“This technology could be utilized to monitor tissue status, such as in transplants, or to gauge crop and forest health, especially regarding the stress levels in organisms,” he explained.
Nonetheless, this field remains rife with uncertainties. For instance, Oblak pondered: “Perhaps UPE is not merely a byproduct of metabolic processes; it may also serve a purpose,” although scientists have yet to reach a consensus.
Read more:
About our experts
Dr. Daniel Oblak is an associate professor in the Faculty of Physics and Astronomy at the University of Calgary. He earned his PhD in Quantum Optics from the University of Copenhagen in 2010, having previously completed his Bachelor of Science and Master’s degrees at Aarhus University. Currently, his research interests encompass quantum information science, long-range encryption, quantum networks, and quantum light interfaces.
Bright objects falling from space lit up the sky in the Mexican capital around 3am on Wednesday, spreading over plains, volcanoes, and small towns.
Videos of a fireball that streaked across a Latin American country and exploded into a burst of light in Mexico City captured the attention of many.
“No, the meteorite that exploded last night is not a reason to reach out to your ex,” someone tweeted. Meteor shower.
Soon, the internet was filled with edited images of fireballs featuring cartoon characters and political jokes.
Bright objects illuminate the sky in Mexico City early on Wednesday.webcamsmx via AP
Mexican scientists quickly realized that the object streaking across the sky was not a meteorite but a bolido. This was Bolido.
Bolido, as defined by NASA, is “a very bright meteor that is spectacular enough to be seen over a large area.”
Mario Rodriguez, a space science researcher at the National Autonomous University of Mexico, explained that it could be classified as a meteor or a fragment of one.
Bolido, resembling a shooting star, creates a fire as it descends through the Mexican skies in the early hours of Wednesday.
“Due to the high pressure on the object, they begin to flare up with their trailing tails and emit light,” Rodriguez stated, part of a team of scientists analyzing the video that amazed many Mexicans. He added that unlike meteorites impacting the Earth, bolidos disintegrate in the atmosphere.
According to him, this particular meteor was around five feet long and posed no danger to the public.
According to a team of Harvard physicists, the structure of the optically rotating animal continues in a logarithmic spiral.
The evolution of light beams carrying the optical decy as a function of propagation distance. Image credits: Dorrah et al. , doi: 10.1126/sciadv.adr9092.
“This is a new behavior of light consisting of optical vortices that propagate space and change in an anomalous way,” says Professor Federico Capaso, a senior author of the study.
“It can potentially help you manipulate small substances.”
With a unique twist, the researchers have discovered that orbital angular momentum-mediated beams of light grow in mathematically recognizable patterns found throughout nature.
Reflecting the Fibonacci number sequence, their optical rotations propagate into logarithmic spirals found in Nautilus shells, sunflower seeds, and tree branches.
“It was one of the unexpected highlights of this study,” says Dr. Ahmed Dora, the first author of the study.
“Hopefully we can help others, who are experts in applied mathematics, to further study these light patterns and gain unique insight into their universal signature.”
This study is based on previous research by the team using thin lenses etched with thin nanostructures to create a light beam with controlled polarization and orbital angular momentum along its propagation path, converting the input of light into other structures that change when it moves.
Now they have introduced another degree of freedom in their light. There, spatial torque can be changed as it propagates.
“We show even more versatility in control and we can do it on a continuous basis,” said Alfonso Palmieri, co-author of the study.
Potential use cases for such exotic rays involve the control of very small particles, such as colloids, in suspension, by introducing new types of forces according to the unusual torque of light.
It also allows for precise optical tweezers for small operations.
Others have demonstrated light that changes torque using high-intensity lasers and bulky setups, but scientists have created theirs with a single liquid crystal display and a low-intensity beam.
By showing that they can create rotary rotary devices in industry-compatible, integrated devices, the barriers to entry for their technology to become a reality are much lower than in previous demos.
“Our research expands the previous literature on structured light, providing new modalities for light and physics, and sensing, suggesting similar effects of condensed material physics and Bose-Einstein condensates,” they concluded.
study Published in the journal Advances in science.
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Ahmed H. Dora et al. 2025. Rotation of light. Advances in science 11 (15); doi:10.1126/sciadv.adr9092
Dear reader, I have a confession: I suffer from the illness that young people call “Brain corruption” Things I can’t think deeply after scrolling too much on my phone. It’s difficult to complete a book these days.
Many people have this problem. Many have created a category of minimalist tech products that strive to eliminate us to be distracted, from AI pins, the artificially intelligent lapel pins that take notes to phones that only have basic features.
The latest example, $600 Light Phone IIIa peeled mobile phone that does little from a Brooklyn startup. The latest version, which began shipping in March and has been set to a wider release in July, can call, text, take photos, view map instructions, play music and podcasts, and many others can’t.
There is no web browser. Also, there is no app store. That means there are no Ubers who welcome rides, slacks, or social media. There’s no even an email.
“When you use it when you need it and turn it back on, it goes away in your life,” said Kaiwei Tang, chief executive of Light, a startup that has developed multiple iterations of light phones over the past nine years. “We tell many customers that they feel less stressed, they become more productive and creative.”
I used it as my main phone for a week, because I wanted to know if a light phone can cure me brain rot. There was a moment when I enjoyed it. I didn’t want to stare at the phone screen while I was waiting for the train, resting at the gym or eating alone. The phone sounded wonderful and clear. The Maps app did an amazing job navigating me around town.
It reminded me of a simple time when we mostly used our phones for Converse before we put them away to focus on other tasks.
But for a week, the flaws of the stupid phone call were lacking in my enjoyment. I suddenly realized I couldn’t enter the station. We looked up the names of our new restaurants and controlled the garage doors.
Part of it has nothing to do with the light phone itself, which is a decent product, but how society as a whole relies on advanced smartphone capabilities.
This is how my week ran errands, commute, and went out on Lower Technology phones.
Get started
When I set up a light phone review unit over the weekend, the phone, which looked like a black rectangular slab, was quite bare bones. The phone’s menu was a black screen showing a white text list for mobile phones, cameras, photo albums and alarm functions. To add more tools, I had to access the dashboard using a web browser on my computer. There, we were able to install features such as the map app, notepad, and timers.
I was ready to go, so I decided to live without my iPhone for at least a while.
I’m commuting
On Monday morning, I took the train from Oakland, California to San Francisco and started commuting. When I arrived at the station I realized that I couldn’t get in without an iPhone. This is because many years ago, I had converted my physical transit pass, Clipper cards, into virtual cards stored in my smartphone’s mobile wallet.
The light phone didn’t have a mobile wallet to load a virtual transit card, so I went back home badly to get my iPhone and eventually showed up in the office 30 minutes late.
Go to the gym
One night, I got a similar hit at a rock climbing gym. To enter, members use their mobile phones to log in to the gym website and generate a temporary barcode that is scanned at the entrance. The light phone didn’t have a web browser and could not create a barcode, so we had to wait in line at the front desk.
Text a friend and take photos
I added some of my closest friends to my address book over a light phone and texted them explaining my experiment. When I typed the device’s keyboard, some felt slow as there was no auto-correct feature to fix typos. As a result, the conversation was concise.
The cheer continued as I sent pictures of people. The unlit and grainy image appeared to have been created with telephone cameras for at least 15 years.
“Retro!” said one friend in response to a blurry photo of my daughter.
“Wow, that’s bad,” another friend said of the dimly lit photo of my corgi Max.
Photo taken on the author’s Corgi’s light phone, Max looked unlit and grainy.credit…Brian X. Chen/New York Times
The founders of Light said they are proud of the Light Phone camera, which has a nostalgic feel to it.
I’m running errands
One afternoon I had to drop off Amazon’s return at the UPS store. We have selected the most convenient shipping options, including displaying QR codes for scanning.
problem? Light phones didn’t have an email app or web browser to download codes. Instead, I loaded it onto my computer screen and snapped mediocre photos on my phone.
When I brought the package to UPS and presented the photos, I held my breath and hoping the image was clear enough. UPS employees kept the scanner and after three attempts they heard beeps and transport labels printed.
Not only is it a relief, but how troublesome.
lunch
Another afternoon my wife and I went out for an improvised lunch. I had to back out the car and ask my wife to use her iPhone to close the garage door with the app myq. (Our physical garage door opener stopped working years ago.)
After that, I was trying to remember the name of a new sushi restaurant I read recently on my food blog. It was inevitable that I would dig deeper into my blog posts on a light phone. In the end we speculated and went to the wrong restaurant. However, it was good to have lunch together without the temptation to check my email.
Conclusion
I admire the goal of light phones, but my experience shows that there is nothing realistically possible or can buy to bring us back to a simpler era. Many aspects of our lives revolve around highly capable smartphones, travelling around town, working, paying for things, dominating home appliances.
This light cell phone experiment reminded me of glamping.
I can’t think of many people who make them work to make light phones realistically use only their mobile phones. Many of us rely on tools like Slack and email to communicate.
A light phone may be a good choice for unplugging while you’re off work, as a secondary leisure phone similar to a weekend car. But even so, camera quality may be a contract breaker for some.
Light’s CEO Tang admitted that Light Shone is not for everyone, but added that parents are considering buying a mobile phone for their children not distracted at school. The company is also working on adding more tools, including the ability to request mobile payments and Lyft cars.
From a global perspective, the early Jurassic was characterized by the steady division of the Supercontinent Pangaea and associated climate change that produced alternating greenhouses and ice house conditions.
These paleoenvironmental changes coincided with radiation in various reptile groups. Plesiosauria.
The early Jurassic fossil records of the Plesiosaurus are particularly diverse, with members of Plesiosauroidea, Pliosauridae and Rhomaleosauridae being represented by numerous species in Europe, particularly in Germany and the UK.
3 m long skeleton Plesioptery Wildi It provides new clues about the evolution and geographical distribution of early Jurassic Precio Sources.
Fossils that were 180 million years ago posidonienschiefer layer Near Holtzmadden in southern Germany.
The specimen, called MH 7, is one of the most complete and distinct plesioaurus skeletons found in the region.
“Unlike the fishy scallions and marine crocodile parents who dominate the fossil record of this formation, Pleciosaurus is relatively rare,” said Miguel Marx, a paleontologist at Lund University and his colleagues.
“Therefore, new discoveries offer rare glimpses into the biodiversity of these long-necked marine reptiles.”
“MH 7 represents someone who refines this type of known trait and refines its validity as a clear taxa.”
Phylogenetic analysis shows that Plesioptery Wildi It is a close-related early potential plesiosaualoid Franconiasaurus Brevispinus.
“This finding suggests a progressive evolutionary transition to more derived cryptocrizids in the late Jurassic period,” the paleontologist said.
“It supports the idea that Prisiosaurus species may have been regionally different in the Epicontoninent Seas of early Jurassic Europe, reinforcing the pattern of paleobiogeographic segregation.”
“The Holtzmadden specimen gives us an unprecedented view Plesioptery Wildi At a more mature stage of development, we can refine our understanding of this species and its place in the evolution of plesiosaurus,” said Dr. Marx.
“It also suggests that different plesiosaurus communities may have evolved in different regions of the European sea during the early Jurassic region.”
“Our research reinforces the Pleciosoaurus already evolves specialized adaptations and distinct regional lineages much faster than we believed,” added Dr. Sven Sachs, a researcher at the Naturkunde Museum Bielefeld.
“This has important implications for understanding how marine reptiles responded to changes in the Jurassic ocean environment.”
M. Marx et al. 2025. New specimen of Plesioptery Wildi We reveal the diversification and possible uniqueness of Cryptocrizia precursors in the early European Jurassic Plecioaurauro assembly. Peerj 13:E18960; doi:10.7717/peerj.18960
The 20-year Hubble study of Uranus provides valuable data to help you understand the atmospheric dynamics of this distant ice giant. This serves as a proxy for studying the deformation of similar sizes and compositions.
The image sequence shows changes in Uranus over the past four years when Hubble’s STIS instrument observed Uranus over 20 years. Over that period, astronomers saw Uranus season as the Antarctic region (left) entered winter shadows, and the Arctic region (right) brightened, and began to become more direct view as summer approached the north. The top row of visible light shows how Uranus’ colours look to the human eye, as can be seen by even amateur telescopes. In the second line, false-colored images of the planet are assembled from visible and near-infrared light observations. The color and brightness correspond to the amount of methane and aerosol. Both of these quantities were indistinguishable before STI first targeted Uranus in 2002. Generally, the green area has less methane than the blue area, and the red area does not show methane. The red area is in the limbs, where the stratosphere of Uranus is almost completely free of methane. The two bottom rows show the latitudinal structures of aerosols and methane, inferred from those visible from 1,000 different wavelengths (colors) to near-infrared. In the third row, bright areas show cloudy conditions, while dark areas show clearer conditions. In the fourth row, the bright areas show depleted methane, and the dark areas show the total amount of methane. At mid- and low-latitude latitudes, aerosol and methane depletion has a unique latitude structure that has changed little over 20 years of observation. However, in polar regions, aerosol and methane depletion behave very differently. In the third row, aerosols near the Arctic show a dramatic increase, becoming very dark in the early days of the Northern Spring and very bright in recent years. It appears that aerosols also disappear in their left limbs when solar radiation disappears. This is evidence that solar radiation alters aerosol haze in Uranus’s atmosphere. On the other hand, methane depletion appears to remain very high in both polar regions throughout the observation period. Image credits: NASA/ESA/Erich Karkoschka, LPL.
Uranus is a giant ice planet about four times the diameter of Earth.
It has a hydrogen and helium feel and has a bit of methane that gives it a blue tint.
Uranus lies to its side and rotates, its magnetic field is biased – it tilts at the center 60 degrees from its axis.
When Voyager 2 passed Uranus in 1986, it provided a close-up snapshot of the planet facing sideways. What it saw resembled a bland blue-green billiard ball.
In comparison, Hubble recorded the story of 20 years of seasonal changes from 2002 to 2022.
During that period, it was used by a team of astronomers led by Dr. Erich Karkoschka of the University of Arizona and Dr. Larry Slomovsky and Dr. Pat Free of the University of Wisconsin. Hubble Space Telescope Imaging Spectrometer (stis) Draw an accurate picture of Uranus’ atmosphere structure.
Researchers observed Uranus four times in 20 years: 2002, 2012, 2015, and 2022.
They found that unlike gas giants Saturn and Jupiter, methane was not evenly distributed on Uranus.
Instead, it is heavily depleted near the pole. This depletion remained relatively constant for 20 years.
However, the structure of aerosols and hazes changes dramatically, and brightens significantly in the Arctic region as the planet approaches the northern summer solstice in 2030.
Uranus takes Earth age just over 84 years to complete the single orbit of the Sun.
Therefore, for over 20 years, the team has seen the spring almost north to make the Northern Pole shine directly in 2030, before shining the equator of Uranus.
“Hubble’s observations suggest a complex atmospheric circulation pattern for Uranus during this period,” the scientists said.
“The data most sensitive to methane distribution shows polar inundation and upwelling in other regions.”
Megatooth shark, Otodus Megalodonthe iconic shark is primarily represented by the enormous teeth of the Neogene fossil record, but the lack of well-preserved skeletal hampers an understanding of various aspects of its biology. In the new study, paleontologists reassessed some of their biological properties using a new approach, based on known vertebral specimens. Otodus Megalodon 165 species of extinction and 10 orders of living sharks. Their results show that Otodus Megalodon Their bodies were thin and could have reached about 24.3 m in length.
Otodus Megalodon It was extinct 3.6 million years ago. Image credit: Alex Boersma/PNAS.
Otodus MegalodonIt is also called Carcharocles MegalodonThis is a giant megatooth shark that lived in the oceans of the world from 23 to 3.6 million years ago.
This creature is usually portrayed as a super-sized monster in popular culture, with a recent example of science fiction films.
“Otodus Megalodon A professor, colleagues and colleagues at DePaul University said:
“Several vertebrae, pracoid scales, and tessellated cartilage fragments have also been reported to date.”
“However, the lack of a complete fossil specimen has led to uncertainty regarding the true size of this prehistoric shark.”
In their study, the authors examined incomplete vertebral specimens of Otodus MegalodonIt is composed primarily of trunk vertebrae, 11.1 m from the Miocene of Belgium. It was also a specimen of 165 species of extinction and living Neotheratia sharks.
“Assuming that Otodus Megalodon If there was a body plan that matched the majority of sharks, we determined that their head length and tail length accounted for about 16.6% and 32.6% of the total length, respectively,” they said.
“Because the Belgian specimen is 11.1 m, its head and tail were calculated to be about 1.8 m and 3.6 m in length, respectively, which specifically results in an estimated total length of 16.4 m. Otodus Megalodon Individual. “
“The largest vertebrae in a Belgian specimen is 15.5 cm in diameter, but estimated Otodus Megalodon Vertebrae with a diameter of 23 cm have been reported from Denmark. ”
“If a Danish vertebra represents the largest vertebra in the body, that individual could have measured approximately 24.3 m in length.”
Based on a comparison of their body proportions, they have a body shape Otodus Megalodon It probably looked like a modern lemon shark on the surface (Negaprion Brevillo Stris), has a slender body than the great white sharks of modern times.
They also have huge modern sharks, such as whale sharks.Rhincodon Types) And the shark was exposed (Cetorhinus Maximus), like many other giant aquatic vertebrates like whales, they have slender bodies, as their large stubborn bodies are hydrodynamically inefficient for swimming.
In contrast, dark white sharks that become even more severe as they grow can grow larger, but are not huge (below 7 m) due to hydrodynamic constraints.
“Our new research solidified that idea. Otodus Megalodon “We've been working hard to get the better of our team,” said Phillip Sternes, educator at SeaWorld San Diego.
“What distinguishes our research from all previous papers on body size and shape estimation Otodus Megalodon Jakewood, a doctoral student at Florida Atlantic University, added:
According to the team, it is 24.3 m long. Otodus Megalodon It weighs approximately 94 tons and estimates of cruising speeds of 2.1-3.5 km/h.
“The growth patterns recorded in Belgian vertebral specimens are Otodus Megalodon A newborn about 3.6-3.9 m long was given birth to a newborn, and the embryos were nourished through egg-eating behavior,” the author said.
“A known fossil record with newly inferred additional growth patterns Otodus Megalodon And the white shark lineage supports the idea that the rise of the great white shark likely played a role in the ultimate end mise about five million years ago. Otodus Megalodon For competition. ”
“Many interpretations we have made are still tentative, but they are data-driven and serve as a reasonable reference point for future research into the biology of Otodus MegalodonProfessor Shimada said.
study Published online in the journal Palaeontologia Electronica.
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Shimada Mana et al. 2025. Reassessment of the size, shape, weight, cruising speed and growth parameters of extinct megatooth sharks; Otodus Megalodon (Lamniformes: Otodontidae), and new evolutionary insights into its giants, life history strategies, ecology, and extinction. Palaeontologia Electronica 28(1): A12; doi: 10.26879/1502
Light has become a strange material called Super Lido
baac3nes/getty images
For the first time, strange solids that can flow like liquids were created from light. Studying it will help researchers to better understand the exotic quantum state of matter.
“We actually made light on a solid. It's pretty amazing.” dimitris trypogeorgos At the National Research Council of Italy (CNR). He points out Daniele SanvittCNR also showed how light becomes a fluid over a decade ago. Now, Trypogeorgos, Sanvitto and colleagues use light to create quantum “superlides” that are not just robust.
Supercrissilicon has a simultaneously zero viscosity and has a crystalline-like structure similar to the arrangement of atoms in salt crystals. None of these strange materials correspond to outside the quantum domain. For this reason, they were previously only created in experiments with atoms cooled to very low temperatures.
However, in this experiment, the researchers replaced the supercold atoms with superconducting aluminum gallium arcenide and lasers.
They illuminated the laser on small sections of the semiconductor with narrow ridge patterns. The complex interaction between light and material ultimately formed a type of hybrid particle called polaritons. The ridge pattern constrained how these “quasiparticles” could move, and what energy could the polytons have in such a way as to form a superlide.
Sanvitto says the team had to measure the sufficient properties of this trapped and converted light very accurately and prove it was a solid and fluid with no viscosity. This was a challenge, he says, as scientists have never previously created and evaluated superspores made from light experimentally before.
The new experiments say it contribute to a general understanding of how quantum matter can change states by undergoing topological transitions. Alberto Bramati At the Sorbonne University in France. The team clearly demonstrated that they made a superlido, but he says more measurements need to be made to understand its properties.
According to Trypogeorgos, light-based superlides may be easier to manipulate than those previously created with atoms.
“We're really at the beginning of something new,” he says.
It's published today International Polar Bear Daynew research will answer questions by showing the first combination of satellite tracking colors and remote camera traps Polar bear (Ursus Maritimus)) Denning is notoriously difficult to study as polar bear moms create dens under the snow in remote areas.
Shooter et al. It reveals the first detailed view of polar bear cults coming out of their burrows. Image credits: Jon Aars/Norwegian Polar Institute.
Turnip survival supports species survival, and denning is the most vulnerable period of life. Less than 50% of Cubs can become adults.
As industry expands in the Arctic, this study highlights the importance of uninterrupted Denning regions to protect polar bear populations.
“Polar bear mothers have increased difficulty replicating due to climate-based changes and could face additional challenges associated with expanding human footprints in the Arctic,” said Dr. Louise Archer, a researcher at the University of Toronto Scarborough University.
“We are excited to introduce new tools to monitor bears during this vulnerable period and gain insight into action across the Arctic.
“Every den we monitor has its own story, and every data point adds to this critical understanding of time and supports a more effective conservation strategy.”
In their study, the authors monitored the behavior of the polar bears in Den Emans held in Svalbad, Norway.
Female polar bears were equipped with GPS satellite collars recording their location, temperature and activity.
Researchers used these collar data to find burrows and traveled through the mountains of Svalbad to deploy time-lapse camera traps at 13 densites over six years.
They found that camera traps provide fine-scale insight into the behavior of the maternal Den, and that satellite collars are accurate and useful for monitoring bears in more remote locations for longer periods of time.
The family appeared in Svalbarbad around March 9th and appeared to abandon the burrow earlier than previously recorded in this group, and further monitoring was needed to establish whether this was a continuing trend.
Changing the timing of denning can put a risk to the cubs' survival as they will less time to develop before they can proceed further towards the sea ice.
In some cases, the bears appeared from the burrow in less than a minute before returning inside, while other appearances lasted for several hours.
In terms of departing den forever, camera footage showed that polar bears remained near the burrow to stay on average for 12 days.
However, this ranged between 2-31 days and was very different among polar bear families.
Some moms switched dens – they were observed leaving their original dens and moving their families to new dens.
Cubs are heavily dependent on their mothers and rarely venture out in their dens alone. The Cubs were only seen in 5% without mothers. In Svalbad, they rely on their mothers for up to 2.5 years.
“This study gives us a total glimpse into one of the most vulnerable and important periods of polar bear life and provides insights that will help guide our collective conservation efforts.”
“Combining innovative technology and long-term research gives us a deeper understanding of the challenges faced by polar bear moms and cubs in the rapidly changing Arctic.”
“Conserving Denning's habitat is essential for population health, and this study provides invaluable insights that can help guide conservation management.”
“There were few studies that included observational data at polar bear burrow sites, and therefore this study contributes significantly to our knowledge of denning ecology,” said Dr. John Arles, a senior researcher at the Norwegian Polar Institute.
Furthermore, data from the satellite radio collar was available to all mothers, and observational data allowed us to communicate how recorded activity and temperature changes corresponded to behavior. ”
study It will be displayed in Journal of Wildlife Management.
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Louise C. Archer et al. Monitoring the phenology and behavior of polar bears during the emergence of den using cameras and satellite telemetry. Journal of Wildlife ManagementPublished online on February 26th, 2025. doi: 10.1002/jwmg.22725
As we approach February, Skywatchers have a final opportunity to witness the “Planet Parade” lighting up the night sky.
The celestial event, where all seven planets in the solar system, apart from Earth, are visible most weeks, is set to provide the best viewing chances for Skywatchers worldwide on Friday. This is because mercury, which only recently appeared on the horizon, will be at its highest point above the horizon.
Starting from Friday, mercury and Saturn will become too dim and too low on the horizon for most observers.
If the conditions are right, it should be possible to spot five out of the seven planets with the naked eye with mercury and Saturn in mind. However, a telescope is necessary to view Uranus and Neptune.
Planetary parades occur when multiple planets are visible simultaneously and spread out in an arc across the sky. While not uncommon, it is rare for all seven planets to be visible at the same time. Four planets were visible before sunrise in August, but NASA states that five will not be visible again until October 2028.
To observe the planets in the sky this week, it is best to find locations on clear nights with minimal light pollution.
Saturn is visible near the horizon (it sets below the sky, making it harder to see during moonrise). Mercury has been far from the sun in recent weeks, making it easier to locate. After sunset, near Saturn, it can be seen low in the western sky.
Venus is also situated in the western part of the sky and is usually the easiest planet to spot due to its brightness.
Jupiter can be observed at dusk. NASA. Mars, meanwhile, is the last planet to set before sunrise.
Michael Shanahan, planetarium director at Liberty Science Center in New Jersey, suggests searching for mercury and Saturn with binoculars near the sunset point shortly after dusk.
As it gets darker, Jupiter, the brightest star in the sky, can be seen overhead. Towards the east, Mars on Earth remains quite bright,” he added.
Shanahan also mentioned that beyond Friday, individuals can witness what he described as “Planetal Ballet against the Starry Background.”
“Around March 10th, Venus will appear too low. Currently, Venus is a bright spot resembling an airplane,” he noted.
Planetary alignments occur due to the planets orbiting the Sun in a relatively flat, disc-like plane. They move along this metaphorical racetrack at their own pace. Mercury completes its orbit in 88 days, Venus takes 225 days, and Saturn takes over 29 years to orbit the Sun.
When multiple planets align on the same side of the metaphorical track, Jackie Faherty, an astronomer and senior research scientist at the American Museum of Natural History in New York City, explained to NBC News earlier this month.
We've all seen it frequently in science fiction films, so the concept seems completely plausible. Characters enter commands, and spacecraft reverse speed, jump to hyperspace, and create wormholes through space and time.
Whatever the terminology, the outcome is always the same. They fly through fictional universes faster than the speed of light, so travel between star systems is not only possible, but practical.
But in the real universe we live in, a huge barrier appears to forbid this. According to Albert Einstein's special theory of relativity, it cannot travel faster than light.
The light travels at an incredible speed of approximately 3 x 108 meters per second. This means that when you look at the universe, you won't see the heavenly objects as they are currently appearing. You can see how light from them first emerged when they departed across the universe.
Within the solar system, these delays are relatively short. For example, it takes only one second of sunlight to bounce off the surface of the moon and reach the Earth, but it takes eight minutes to cover the distance between the sun and our world.
Due to the enormous distance from us, if the sun suddenly disappears, you won't notice until 8 minutes later – Photo Credit: Getty
The more visible the longer the delay, which gives rise to the light-year concept as a measure of distance. Our closest star, Proxima Centauri, is about 4.25 light years away. In other words, it takes 4.25 years to get there from there. Therefore, the stars are not as they are now, and look like 4.25 years ago.
Beyond the vast expanse of the universe, distance is ultimately measured in billions of light years. This is what makes cosmology possible. The more we see the universe, the older the objects we see, and we can diagrammaticize today's evolution into stars and galaxies.
But if you can travel there and see what those objects look like now, wouldn't that be great?
Having a warp drive may sound like it, but it has some pretty weird results. For one thing, it would ruin the notion of causality.
Causality is our common sense perception that precedes effectiveness. But if you saw a faster spaceship trip towards you, you will see the ship in two places at once. The light carrying information about the ship's departure would not have reached the eye before the ship could be seen along the way.
Worse, the mathematics of relativity shows that if the speed exceeds the speed of light, literally time travel is possible.
This creates a full-scale causal paradox such as the famous “grandfather's paradox.” And how does it work – will you just no longer exist?
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Negative energy inside
At first glance, Einstein's theory appears to protect us from such head-envelope challenges, as it appears to make it impossible to move faster than light. Masu.
According to the equation, the energy required to accelerate the ship to such a speed is infinite. However, researchers then began to look at mathematics in more detail.
A general theory of relativity – Einstein's extension of his special relativity – he proposes that the universe is made of adaptive fabrics called the space-time continuum, and he uses gravity to make this fabric I explained that it was distorted.
Who knows if tachyons exist, but if so, the theory suggests that it travels faster than light. – Image credits: Science Photography Library
1994, Physicist Dr. Miguel Alcubière At the University of Wales, and at Cardiff, we showed that solutions exist within the theory of general relativity that can be interpreted as warp drives. The problem was that it requires an exotic substance known as “negative energy” to make it work.
Astronomers have toyed using the concept of negative energy to explain why the universe appears to be accelerating, but with an understanding of physics, matter is comfortable to exist It cannot be done.
Then in May 2024, A group of researchers reexamined mathematics We will use only the types of particles and energy that make up the planet and people to see if the Alkbiere Warp phenomenon can be generated.
Their conclusion: Yes, they did. Dr. Jared Fuchs And colleagues at the University of Alabama in Huntsville, USA, discovered that they could arrange for normal material and energy to create warp phenomena and transport people through space. But there was a catch: they could only make it work at sub-light speed.
“It takes a lot of energy to make small changes to the space,” Fuchs says. To move the passenger seat, the size of a small room requires a small house-sized “warp bubble” for the size of a small room. And to make it, you need to narrow the mass of Jupiter several times. It becomes the volume that is the size of a small asteroid.
“now, [is that] Is it possible? perhaps. [Is it] Practical? I wouldn't say that,” says Fuchs. Even if it was possible to create such a device, the old boundaries still exist. To accelerate faster than the speed of light, you need an infinite amount of energy.
“We will not resolve the future of rapid transportation like Star Trek,” admits Fuchs.
Trouble with Tachon
Other researchers have conducted their own research into relativity. Professor Andrzej Dragan Collaborators at the University of Warsaw in Poland decided to consider possible solutions within the equation of particles that travel faster than light.
Physicists have previously messed with such concepts. They even called such virtual particles “tachyons,” but essentially considered them more than mathematical curiosity. However, Dragan and her colleagues found an equation explaining Tachyon's behavior.
“Mathematically, they make perfect sense,” says Dragan. In other words, our familiar world of secondary particle particles could coexist with the upper heart family of the second family, the tachyon.
Unfortunately, this does not mean that spacecraft can speed faster than light. To do that, Dragan explains that it requires the infinite energy that Einstein predicted, as well as the infinite energy to slow the Tachyon down to a sub-blue-minal speed.
“You can't exceed the speed of light in either direction,” says Dragan.
Nevertheless, the study We have proposed some fascinating results that may explain some of the most inexplicable observations physicists are working on.
When dealing with Tachon, Dragan and his colleagues encountered the causal issues they had been expecting. But the more I looked into these details, the more I realized that something surprising was happening. The strict lack of causes and effects was very similar to the behavior of normal, everyday subatomic particles.
The theory of relativity explains the behavior of the universe at its largest scale, while quantum theory describes the subatomic domain as a very different location.
Quantum theory introduces probability into particle interactions. For example, we know that an atom can absorb photons of light and at some stage it will re-emit that photon, but we cannot predict when or in which direction it will take.
In other words, the exact cause is hidden from us, and all we have left is an observable effect. Dragan suggests that when tachyon interacts with normal substances, the outcome of that interaction is unpredictable – like the emission of photons.
So, while these latest ideas do not seem to open a route to practical warp drives, they may only show a deeper look at the nature of the cosmos and the origins of quantum behavior.
About our experts
Dr. Jared Fuchs He is the CEO of Celedon Solutions Inc. and works in the Faculty of Physics at the University of Alabama in Huntsville, USA. His work has been published Classical and quantum gravity.
Professor Andrzej Dragan He is a filmmaker and professor of physics at the University of Warsaw in Poland, and a visiting professor at the National University of Singapore. His work has been published Physical review, Classic and Quatnam Gravity and New Journal of Physics.
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Paleontologists have excavated fossilized remains of two Jurassic bird species in the area of Zenge County, Fujian Province, southeastern China. These 149 million-year-old fossils exhibit early appearances of highly derived bird characteristics, and together with fossils of another bird from the same region, they have the early origins of the birds and the early Jurassic. It suggests bird radiation.
“Birds are the most diverse group of terrestrial vertebrates,” says Professor Min Wang. Paleontology and Paleontology of Vertebrates The Chinese Academy of Sciences and colleagues said in a statement.
“Specific macroevolutionary studies suggest that their early diversification dates back to the Jurassic period.”
“However, the earliest evolutionary history of birds has long been obscure by highly fragmented fossil records. Archeopteryx Being the only widely accepted Jurassic bird. ”
“nevertheless Archeopteryx It was closely similar, especially due to its distinctive long reptile tail, as it had feathered wings. This is in stark contrast to the short-tailed morphology of modern and Cretaceous birds. ”
“Recent research questions about Aviaran's status. Archeopteryx classifies it as a deinonychosaurian dinosaur, a sister group of birds. ”
“This raises the question of whether there is a clear record of Jurassic birds.”
In their new study, Professor Wang and co-authors discovered and investigated two early bird fossils that were part of the so-called Zhenghe Biota.
One of these birds named Baminornis Zhenghensis the earliest known short-tailed bird.
“Baminornis Zhenghensis The end of the short tail in a complex bone called Pygostyle is a characteristic that can also be observed in living birds,” the paleontologist said.
“Previously, the oldest record of short-tailed birds was from the early Cretaceous period.”
“Baminornis Zhenghensis It is the only Jurassic and the oldest short-tailed bird ever discovered, pushing back the appearance of this derivative bird's distinctive features for nearly 20 million years. ”
According to the team, Baminornis Zhenghensis It also represents one of the oldest known birds.
“A step back and reconsidering the uncertainty of the phylogenetics Archeopteryx we don’t doubt it Baminornis Zhenghensis said Dr. Zhonghe Zhou of the Institute for Vertebrate Paleontology and Paleontology at the Chinese Academy of Sciences.
The second unnamed bird is represented by a single fossilized fullcula (wishbone).
“Our results support this introduction to Furcula ornithuromorpha a diverse group of Cretaceous birds,” the researchers said.
Team's work It was published in the journal today Nature.
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R. Chen et al. 2025. The first short-tailed bird from the late late Jurassic period in China. Nature 638, 441-448; doi:10.1038/s41586-024-08410-z
The number of cats increasing that have died or become ill after consuming raw pet food and raw milk contaminated with the H5n1 virus has prompted health authorities to take special precautionary measures to protect pet food companies from bird flu. They are advising pet food makers to follow food safety plans such as sourcing ingredients from healthy flocks and applying heat treatments to inactivate viruses, as suggested in recent guidance from the Food and Drug Administration.
Since the H5n1 virus started spreading in 2022, there have been bird outbreaks under all conditions. Cats appear to be particularly susceptible to the H5N1 virus, with many household cats and wild cats becoming infected since its emergence in 2022. Some farm cats have fallen ill after consuming raw milk, while others have died after consuming contaminated raw pet food.
Despite the FDA guidance, some experts like Dr. Jane Cycks from the University of California, Davis School of Veterinary Medicine have raised concerns about the lack of detailed instructions on guaranteeing the absence of H5N1 in food. The FDA has advised pet owners to cook raw pet food to eliminate risks and follow USDA guidelines for safe food handling.
In response to the situation, some raw pet food companies have implemented safety measures such as sourcing quality ingredients and using processes like high-pressure pasteurization. However, experts emphasize that cooking is the only certain way to eliminate the risk of H5N1 in pet food.
While high-pressure pasteurization is advertised as a method to kill pathogens, experts caution that cooking to internal temperature is the most reliable way to ensure food safety. Consumers are advised to cook raw pet food thoroughly before feeding it to their pets to reduce the risk of transmission of bird flu.
For those who prefer raw pet food brands, experts suggest cooking the food before feeding it to ensure the safety of pets.
Using observations from the James Webb Space Telescope, astronomers found that at a time when the Universe was half its current age, a single galaxy behind the galaxy cluster Abel 370 had a redshift of 0.725 (Dragon We identified a star with more than 40 microlenses in an arc (called an arc).
In this Hubble image of Abell 370, the host galaxy in which 44 stars were discovered appears several times. Image credit: NASA.
“This groundbreaking discovery demonstrates for the first time that it is possible to study large numbers of individual stars in distant galaxies,” said Fengwu Sun, a postdoctoral researcher at the Harvard University & Smithsonian Center for Astrophysics. the doctor said.
“Previous studies using the NASA/ESA Hubble Space Telescope discovered about seven stars, and now we have the ability to resolve them in a way that was previously impossible. ”
“Importantly, observing larger numbers of individual stars will also help us better understand the dark matter in the lens surfaces of these galaxies and stars. i didn't understand.”
In the study, Sun and his colleagues analyzed web images of a galaxy known as Dragon Arc, which lies along the line of sight from Earth behind a massive galaxy cluster called Abel 370.
Through gravitational lensing, Abel 370 stretches the Dragon Arc's characteristic spiral into an elongated shape. It is a hall of mirrors as big as the universe.
Astronomers carefully analyzed the color of each star in the Dragon Arc and discovered that many of them were red supergiants. This is in contrast to previous discoveries that primarily identified blue supergiants.
The researchers say this difference in star types highlights the unique ability of Webb observations at infrared wavelengths to reveal stars even at low temperatures.
“When we discovered these individual stars, we were actually looking for background galaxies that were magnified by galaxies within this giant cluster,” Dr. Sun said.
“But when we processed the data, we found that there were many what appeared to be individual star points.”
“It was an exciting discovery because it was the first time we had been able to see so many individual stars so far away.”
“We know more about red supergiants in our local galactic neighborhood, because they are closer and we can take better images and spectra, and sometimes even break up stars. It’s from.”
“Knowledge gained from studying red supergiants in the local universe can be used in future studies to interpret what happens next to red supergiants during the early stages of galaxy formation.”
Most galaxies, including the Milky Way, contain tens of billions of stars. In nearby galaxies, such as the Andromeda galaxy, astronomers can observe stars one by one.
But in galaxies that are billions of light years away, their light has to travel billions of light years to reach us, so stars appear mixed together, which explains how galaxies form and evolve. This has been a long-standing challenge for scientists who study it.
“To us, very distant galaxies usually look like diffuse, blurry clumps,” says Dr. Yoshinobu Fudamoto, an astronomer at Chiba University.
“But in reality, those clumps are made up of so many individual stars that our telescopes can't resolve them.”
of findings Published in a magazine natural astronomy.
_____
Yuya Fudamoto others. Identified over 40 gravitationally expanded stars in the galaxy at redshift 0.725. Nat Astronpublished online on January 6, 2025. doi: 10.1038/s41550-024-02432-3
In a new paper, planetary researchers from Texas A&M University and the University of Washington introduce a new thermodynamic concept called centotectics to investigate the stability of liquids under extreme conditions. This is important information for determining the habitability of icy moons and oceanic exoplanets.
Europa's surface stands out in this newly reprocessed color view. Image scale is 1.6 km per pixel. North of Europe is on the right. Image credit: NASA / JPL-Caltech / SETI Institute.
Exploration of icy ocean worlds represents a new frontier in planetary science, with a focus on understanding the potential of these environments to support life.
New research is addressing fundamental questions in this field. Under what conditions can liquid water remain stable on these distant frozen bodies?
The authors provide an important framework for interpreting data from planetary exploration activities by defining and measuring the cenotect, the absolute minimum temperature at which a liquid remains stable under various pressures and concentrations.
This research combines their expertise in cryobiology with their expertise in planetary science and high-pressure water ice systems.
Together, they developed a framework that bridges the disciplines to tackle one of the most fascinating challenges in planetary science.
2016 artist concept for the European Clipper spacecraft. As spacecraft development progresses, the design changes. Image credit: NASA/JPL-Caltech.
“The launch of NASA's Europa Clipper, the largest planetary exploration mission ever launched, ushered us into a decades-long era of exploration of the frigid ocean world,” said Dr. Baptiste Journeau, a planetary scientist at the University of Washington. It's coming in,” he said.
“Measurements from this and other missions will tell us the depth of the ocean and its composition.”
“Laboratory measurements of liquid stability, particularly the lowest possible temperature (a newly defined cenotect), combined with the mission results will help us determine how habitable the solar system's cold, deep oceans are, and how likely they will ultimately be. It will be possible to completely constrain what the temperature will be.''The fate would be when the moon or planet cools down completely. ”
“The study of icy worlds is a particular priority for both NASA and ESA, as evidenced by the spate of recent and upcoming spacecraft launches,” said Dr. Matt Powell-Palm, a planetary scientist at Texas A&M University. Ta.
“We hope to help Texas A&M provide intellectual leadership in this area.”
of paper Published in the Journal on December 18, 2024 nature communications.
_____
A. Zaris others. 2024. On the equilibrium limit of liquid stability in pressurized water systems. nut community15;doi: 10.1038/s41467-024-54625-z
MIT physicists used a terahertz laser, a light source that oscillates more than 1 trillion times per second, to directly stimulate the atoms of an antiferromagnetic material. Their results are attracting attention because they provide new ways to control and switch antiferromagnetic materials and have the potential to advance information processing and memory chip technology.
Iliad others. demonstrated efficient manipulation of the magnetic ground state of layered magnets by a non-thermal route using terahertz light, and observed enhanced variations in order parameters as a promising area for exploring metastable hidden quantum states. The region near the critical point was established. Image credit: Adam Glanzman.
In a common magnet, known as a ferromagnetic material, the spins of the atoms point in the same direction, making the whole magnet susceptible to the influence of an external magnetic field and drawn in that direction.
In contrast, antiferromagnets are composed of atoms with alternating spins, with each atom pointing in the opposite direction from its neighbor.
This top, bottom, top, bottom order basically cancels out the spinout and gives the antiferromagnet a net zero magnetization that is unaffected by magnetic forces.
If memory chips could be made of antiferromagnetic materials, it would be possible to “write'' data into minute regions of the material called domains.
A certain configuration of spin orientation in a particular region (e.g., up-down) represents a classical bit ‘0’, and a different configuration (down-up) means ‘1’. Data written on such chips becomes robust against external magnetic influences.
For this reason, scientists believe that antiferromagnetic materials could provide a more robust alternative to existing magnetic-based storage technologies.
However, a major hurdle has been how to control antiferromagnets in a way that reliably switches the material from one magnetic state to another.
MIT professor Nuh Gedik and his colleagues were able to controllably switch antiferromagnets into new magnetic states using carefully tuned terahertz light.
“Antiferromagnetic materials are robust and unaffected by unwanted stray magnetic fields,” Professor Gedick said.
“But this robustness is also a double-edged sword: their insensitivity to weak magnetic fields makes these materials difficult to control.”
Researchers collaborated with FePS3a material that transitions to an antiferromagnetic phase at a critical temperature of about 118 K.
They thought that by tuning in to the vibrations of atoms, it might be possible to control the transitions of matter.
“You can imagine that any solid material has a periodic arrangement of different atoms, with little springs between them,'' said Dr. Alexander von Hogen of MIT.
“When you pull one atom, it vibrates at a unique frequency that typically occurs in the terahertz range.”
The way atoms vibrate is also related to how their spins interact.
Scientists believe that if they can stimulate atoms with a terahertz source called phonons, which vibrate at the same frequency as the atoms' collective vibrations, the effect will change the spins of the atoms from a perfectly balanced magnetically staggered state. It was inferred that there was a possibility of deviation.
When the balance is disrupted, the atoms have more spin in one direction than the other, creating a preferred orientation that moves the essentially unmagnetized material into a new magnetic state with finite magnetization.
“The idea is to kill two birds with one stone: we excite terahertz vibrations in atoms, which are also coupled to their spins,” Professor Gedick said.
To test this idea, they placed a sample of FePS.3 It was cooled to a temperature below 118K in a vacuum chamber.
They then generated terahertz pulses by directing a beam of near-infrared light at an organic crystal, converting the light to terahertz frequencies.
This terahertz light was then directed at the sample.
“This terahertz pulse is what is used to induce changes in the sample,” said Dr. Tianchuang Luo of MIT.
“It’s like ‘writing’ a new state to the sample.”
To confirm that the pulse caused a change in the material’s magnetism, the authors also aimed two near-infrared lasers, each with opposite circular polarization, at the sample.
Without the influence of the terahertz pulse, there should be no difference in the intensity of the transmitted infrared laser.
“Just seeing the differences tells us that the material is no longer the original antiferromagnetic material, but is essentially inducing a new magnetic state by shaking the atoms using terahertz light,” MIT said Dr. Bateer Ilyas.
Through repeated experiments, the researchers observed that the terahertz pulses were able to successfully switch previously antiferromagnetic materials into a new magnetic state. This transition persisted for a surprisingly long time, more than a few milliseconds, even after the laser was turned off.
“People have observed such light-induced phase transitions in other systems before, but typically their survival times are very short, on the order of picoseconds, or trillionths of a second. ,” Professor Gedick said.
Palaeospondylus ganniwas a small, eel-like creature that lived during the mid-Devonian period, about 390 million years ago, and is among thousands of similarly preserved fossils from the Achanaras Quarry in Caithness, Scotland. is represented by. Radically different interpretations of its structure had assigned this species to almost all major jawless and jawed vertebrate groups. Paleontologists are currently identifying new and old species. spondylosis From the early Devonian period of Australia.
First described in 1890, spondylosis It is a mysterious fish-like animal with a series of strange morphological features in the fossil record, including a lack of teeth and osteodermal bones.
Until now it was only known as Palaeospondylus ganni From the Middle Devonian Orcadian Basin in Scotland.
Initially interpreted as jawless vertebrates, they were soon classified into their own order and family.
Whereas the Scottish specimen was extremely compressed with all skeletal elements welded together, the new discovery spondylosisis located in a 400-million-year-old limestone in the Georgina Basin of western Queensland, central Australia, and is in a very different state of preservation as a 3D unfractured element.
“This is an amazing addition to Queensland's fossil record and is at the other end of the size scale of prehistoric giants like dinosaurs.” loetosaurus and Australotitan couperensis'' said Carol Barrow, a paleontologist at the Queensland Museum.
“What? Palaeospondylus australis Even more interesting is its relationship with similar species in northern Scotland. Palaeospondylus ganni”
The new fossil's honeycomb-like structure and complex internal features suggest the fish's early evolutionary importance.
The exact relationship is Palaeospondylus australis Although much remains unclear, as its features indicate that it retains many larval features, it is likely to be a distant relative of sharks.
This groundbreaking discovery not only enriches our understanding of ancient Australian ecosystems, but also highlights the global connectivity of early vertebrates across continents.
research Palaeospondylus australis It promises to uncover more mysteries about the evolution of jawed vertebrates.
“Discovery of a mysterious animal” spondylosis The early Devonian discovery in Australia indicates that this form is likely to have been distributed globally, given that Scotland and eastern Australia were then and now on opposite sides of the globe. “, the paleontologists said.
“New evidence regarding neurocranial features… spondylosis Adds important but contradictory information about that affinity. ”
“Until new and better evidence becomes available, spondylosis It is considered a pedunculate gnathostome, possibly a sister group to the cartilaginous fishes, and shows a mosaic of characters exhibited by both the osteoostia and some placoderms, as well as by the cartilaginous and teleost fishes. ”
of result appear in the diary National Science Review.
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Carol J. Barrow others. 3D brain box of early jawed vertebrates spondylosis From Australia. National Science Reviewpublished online on December 3, 2024. Doi: 10.1093/nsr/nwae444
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