Why Erwin Schrödinger’s 1944 Classic ‘What is Life?’ Remains a Timeless Science Essential

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What is Life? Is It Still Impactful?

Erwin Schrödinger, a pioneer of modern quantum science, articulated in his 1944 book that scientists should contribute to their fields as a form of nobility. In What Is Life?, he invites readers to delve into the world of living organisms, moving away from the focus on inanimate atoms that brought him fame. Over approximately 90 pages, he transitions from one area of expertise to another, producing an influential work in popular science during the 20th century.

Based on a series of lectures delivered in Dublin in 1943, What Is Life? maintains a conversational tone while occasionally reflecting on deeper philosophical questions. However, Schrödinger’s core dilemma is framed within the parameters of physics: “How can phenomena occurring within living organisms be explained through physics and chemistry?”

To explore this, Schrödinger employs a physicist’s rationale. What Is Life? begins with a discussion on the minuscule and abundant building blocks of life and how they adhere to statistical physics principles. He clarifies that while physicists can derive averages from large collections, individual behavior remains unpredictable.

The laws of physics indicate that systems trend towards disorder and exhibit fluctuations. Yet, living organisms display remarkable order, akin to the intricate mechanisms of a clock. Schrödinger is captivated, noting that even minimal “genetic material” enables consistent reproduction and trait transmission, a phenomenon that poses questions in his analysis.

Written before the full understanding of DNA’s structure, Schrödinger contemplates the composition of this genetic material. Drawing from his studies on mutation inheritance and linking it to quantum concepts, he reflects on the possibilities of this genetic solidity and its quantum stability. His principal claim is that living entities require “negative entropy” to sustain order, necessitating a continual draw of organization from their environment. Schrödinger asserts that fully unraveling this enigma might demand new physics laws.

Published in 1944, What Is Life? garnered significant attention, inspiring numerous physicists to pivot towards biology. It frequently features in “best of” lists, appealing to general readers, yet chemists and biologists were less enthusiastic.

Nobel Prize laureate Max Perutz examined the extensive contemporary work that Schrödinger might have referenced for his inquiries. He noted that Schrödinger’s confusion about the regeneration of small genetic materials during cell division could have been mitigated with a better understanding of the roles of involved enzymes. Perutz also criticized the concept of negative entropy.

Recently, author Philip Ball indicated that Schrödinger might have gained deeper insight by engaging with ideas connecting entropy and information—such as Leo Szilard’s 1929 solution to Maxwell’s Demon paradox, where rising disorder is seemingly countered.

Despite valid criticisms, as a physicist, I find myself more aligned with Schrödinger’s perspective than those entrenched in modern genetics. In conversations with biophysicists, echoes of What Is Life? resound. Just last year, a researcher shared his ambitions to establish new physical laws addressing living systems. Another scholar sensibly noted, “If you’re in equilibrium, you’re dead,” capturing Schrödinger’s sentiments from the 1940s.

In 2021, biophysicist Rob Phillips at the California Institute of Technology asserted that What Is Life? should be viewed as “a manifesto on the frontiers of physics, signifying that every new phenomenon demands innovative concepts and ultimately results in new laws.” I concur. Although Schrödinger’s grasp of biology and chemistry was incomplete, his physicist’s intuition remains relevant.

Are physicists best equipped to decipher the precise mechanisms that distinguish the living from inanimate matter? It’s a philosophical question that future research may illuminate. This duality of excitement and frustration was poignantly addressed by Schrödinger over 80 years ago, grappling with the same challenges we face today.

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Source: www.newscientist.com

New Evidence Suggests Life May Not Have Begun on Earth: Discover What Changed Experts’ Minds

If you’ve been closely following developments in space science, you may have heard about the groundbreaking discovery of DNA’s building blocks on an asteroid. This is a crucial finding for understanding the origins of life.

The latest findings stem from the carbon-rich near-Earth asteroid Ryugu, which was explored by JAXA’s Hayabusa2 spacecraft, returning samples to Earth in 2020.

A recent study published in Nature Astronomy confirms that all five standard nucleobases—the molecular “letters” that encode genetic information in DNA and RNA—are present in these samples.

This finding, combined with similar discoveries from asteroid Bennu and the Murchison meteorite, suggests a broader pattern rather than isolated incidents.

Genetic Letters Etched in Space

Nucleobases are nitrogen-rich molecules that hold genetic information. The five primary nucleobases—adenine, guanine, cytosine, thymine, and uracil—pair together along the backbone of DNA and RNA, encoding the instructions necessary for life. Without these nucleobases, life as we know it could not exist.

While the presence of these molecules on an asteroid doesn’t imply life existed there, it does indicate that the chemistry needed to create essential biological ingredients occurs naturally in the universe, a process called abiotic synthesis.

“The important point is that nucleobases formed naturally on primitive asteroids and may be widely distributed across the solar system,” explains Dr. Toshiki Koga, a postdoctoral fellow at the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and the lead author of this study.

The discovery of life’s building blocks in meteorites usually raises concerns about contamination from Earth’s biology. For instance, the presence of organic molecules near a meteorite can complicate interpretations of its origin.

The solution lies in studying the asteroids directly. The Hayabusa2 mission collected samples in space and, before returning to Earth, sealed them in a clean room under an inert gas atmosphere.

“The samples were collected in space and sealed to avoid exposure to Earth’s environment,” Koga states, emphasizing that all analytical processes were conducted under strict contamination controls.

Similarly, NASA’s OSIRIS-REx mission returned samples from asteroid Bennu in 2023, which also contained all five nucleobases.

The Hayabusa2 spacecraft visited asteroid Ryugu on June 27, 2018, and collected 5.4g of samples before returning to Earth in December 2020 – Photo credit: JAXA

Analyzing Chemical Ratios

The Ryugu study offers more than just confirmation of previously expected results; it provides insights into the varying chemical compositions of different asteroids.

Different space rocks exhibit varying proportions of two classes of nucleobases: purines (adenine and guanine, which have a two-ring structure) and pyrimidines (cytosine, thymine, and uracil, which have a simpler single-ring structure).

The Murchison meteorite is rich in purines, Bennu predominantly contains pyrimidines, while Ryugu falls somewhere in between.

Researchers found a strong correlation between the ratio of purines to pyrimidines and the levels of ammonia in each sample. Higher ammonia levels correspond to an increase in pyrimidines, implying a shared yet environmentally sensitive formation pathway.

“By comparing the nucleobase compositions of Ryugu, Bennu, and the meteorite, we have uncovered evidence for a potentially new formation mechanism,” Koga notes, with laboratory experiments underway for further investigation.

Rethinking the Origins of Life

According to Critie Grice, a Professor of Geochemistry at Curtin University who was not involved in the study, the accumulating evidence suggests a shift in our understanding of life’s origins.

“Life did not originate from scratch on Earth; the molecules necessary for life, such as nucleobases, may have formed in space and been delivered to Earth very early on,” she explains.

This reframing of the origin of life narrative suggests that rather than questioning how life produced its essential chemistry on a young Earth, we should consider how Earth organized existing molecular tools into replicating, evolving systems.

In this model, Earth acts more as an assembly line than a chemical laboratory.

The essential ingredients for nucleobase production—carbon, nitrogen, water, and radiation—are abundant throughout the universe.

The chemical processes in molecular clouds and primitive asteroids are common to planetary formation, reinforcing that the chemistry we observe is not unique to our solar system.

“The essential ingredients are widespread in the universe; the processes we’re discussing are foundational to planetary formation,” Grice states.

Large particles collected from asteroid Ryugu during Hayabusa2’s second touchdown, ranging from 3mm to over 10mm – Photo credit: JAXA

If the molecular precursors of life tend to form where planets develop, then the question of life spreading throughout the universe shifts from whether these ingredients exist to whether the conditions for their utilization will ever arise.

However, it’s essential to clarify that nucleobases themselves are not DNA or life forms. Transitioning from nucleobases to self-replicating molecules that can undergo Darwinian evolution requires the presence of sugars, phosphates, water, and potentially a bit of luck.

Moreover, some molecules carried by asteroids can disintegrate upon atmospheric entry, potentially preventing them from reaching concentrations that foster life.

Nonetheless, the patterns emerging from studies of Ryugu, Bennu, and various meteorite analyses are astonishing.

Approximately 4.6 billion years ago, as the solar system took shape, the basic materials for genetics were likely already being synthesized in cosmic rocks floating between planets.

Understanding how these components were assembled and whether similar processes could occur elsewhere in the universe remains one of science’s most critical open questions.

What we can confidently assert is that there has never been a shortage of essential materials for life.

Read more:

Source: www.sciencefocus.com

Discovering the Origins of Spider Fangs: Tracing Ancient Marine Life Back to 518 Million Years Ago



Urocodia equalis

is an early Cambrian marine predator from China’s Chengjiang biota, notable for preserving the earliest evidence of chelicerae. This unique structure is a precursor to the fangs of spiders and pincers of scorpions.



Artist’s impression of Urocodia equalis, a marine predator that roamed Cambrian seas around 518 million years ago. Image credit: Xiaodong Wang.

Spiders, scorpions, and ticks belong to a significant group of invertebrates known as chelicerates, which includes over 100,000 described species.

Characterized by articulated limbs and an external skeleton, these creatures are particularly known for their specialized limbs, called chelicerae, used for capturing prey.

The earliest fossil records of chelicerae emerged not from terrestrial habitats but from marine organisms inhabiting Cambrian seas over 500 million years ago.

In a groundbreaking study, paleontologists examined Urocodia equalis from the renowned Chengjiang Fossil Site in Yunnan Province, China.

This diminutive creature measures just 2 to 3 centimeters and features large, stalked eyes, a segmented skeleton, and articulated limbs extending from its elongated body.

“The Urocodia equalis was part of an ancient ecosystem with over 200 species thriving in the ocean more than 500 million years ago,” stated Professor Mark Williams from the University of Leicester.

“These excellently preserved fossils offer invaluable insights into the early evolution of life on Earth.”

Utilizing X-ray tomography, Professor Williams and his team conducted an in-depth analysis of Urocodia equalis, uncovering much of its soft tissue still intact.

The scans revealed small, scissor-like limbs located behind the eyes, representing an early evolutionary version of the chelicerae that later developed into the fangs of spiders and pincers of scorpions.

“During our X-ray tomography analysis, we discovered soft anatomy that had remained buried for millions of years, including these fascinating scissor-like limbs,” remarked Professor Yu Liu, a paleontologist at Yunnan University and the University of Leicester.

“This fossil is particularly intriguing as it is a distant ancestor of chelicerates like scorpions and spiders.”

Urocodia equalis‘s legs also exhibit features similar to gills, a respiratory adaptation still observed in modern horseshoe crabs.

This discovery extends the fossil record of this unique trait, providing a rare glimpse into the origins of one of evolution’s most successful hunting adaptations that emerged in ancient oceans.

Urocodia equalis has a seven-segmented head with a sclerotized lower mouth, pincer-like appendages, and bilobed body appendages equipped with overlapping exit valves,” noted the paleontologists.

“These scissor-like appendages illustrate a transitional structure between a multi-segmented appendage and a true chelicera; mega keiran represents the origin of book gills.”

Further details of these findings are published in the latest issue of Nature.

_____


Y. Liu et al., Urokodia: Shedding light on the origin of chelicerae and their book gills. Nature, published online July 1, 2026. doi: 10.1038/s41586-026-10713-2

Source: www.sci.news

How CRISPR Technology Saved My Life: A Personal Journey

Alyssa Tapley: A Journey Through Life-Saving CRISPR Treatment

Photo Credit: Alyssa Tapley

When my bone marrow transplant failed to treat my leukemia, I thought, “This is it.” Doctors reassured my parents that it was only a short-term issue, but weeks turned into a long and challenging journey.

Having just turned 13, I was overwhelmed by thoughts of missing out on growing up, having a family, and living a normal life.

Then, we heard about a groundbreaking trial at Great Ormond Street Hospital in London that felt straight out of science fiction. The doctors described how they would enhance my CAR T cells to fight and eliminate the cancer cells in my body.

Everything began after Easter in 2021. Upon returning to school after the COVID-19 lockdown, I struggled with fatigue. My energy levels plummeted, and I eventually developed pneumonia, leading to my hospitalization.

During a particularly concerning morning, my father took me to the A&E hospital. My condition worsened, and I found myself in intensive care, unaware that I was beginning chemotherapy for my leukemia—characterized by malignant immune cells.

Doctors faced challenges diagnosing my ailment, likely due to my rare T-cell leukemia. Following an ineffective month of chemotherapy, I underwent a bone marrow transplant in Sheffield, which aimed to replace cancerous stem cells with healthy ones.

Expecting to be home for Christmas, I instead faced unanticipated complications and returned to the hospital. It was a devastating realization that the transplant hadn’t worked.

With no further options available, my family was devastated. My mother described the immeasurable pain of losing hope.

In their search for alternatives, they learned about CAR T-cell therapy, which transforms T cells to effectively target cancer cells. However, they soon discovered its limited effectiveness in treating T-cell leukemia.

Then, my consultant introduced us to Professor Waseem Qasim, who was pioneering the use of CRISPR base editing to enhance CAR T cells for patients like me. This innovative treatment offered renewed hope.

Despite my parents’ reservations about the trial, they ultimately supported my decision, recognizing my desire to contribute positively, even if it didn’t benefit me directly.

Before the CAR T cell collection, I underwent rigorous pre-treatment for two weeks in the hospital. It was exciting to see the treatment take effect, and I felt a wave of relief when the doctors confirmed the cells were multiplying.

The staff at Great Ormond Street were exceptional. Even in isolation, I forged connections with other patients and staff, finding support in our shared struggles. Unfortunately, I lost a friend who didn’t survive the bone marrow transplant.

Four weeks later, I received the incredible news that my bone marrow was cancer-free. Follow-up tests continually confirmed the absence of detectable cancer cells, leading to a second transplant to reinforce my healing.

The hardest transition came after returning home. No longer surrounded by a supportive medical team, I faced strict isolation to prevent infection while trying to adjust to life outside the hospital.

Today, I am in remission but continue to manage the side effects of my treatment. While my thyroid is underactive due to chemotherapy, I am committed to ongoing treatment. I dream of a future where CAR T therapy could provide immediate relief without extensive chemotherapy.

Now 17 and pursuing my A-levels, I am excited about my future in biomedical science. My goal is to help others as much as I have been helped.

I actively participate in conferences to share my journey, and I had the honor to meet Professor David Liu, the innovator behind base editing. It was an emotional experience for me.

I cherish the opportunity to advocate for the importance of scientific research. Without the advancements borne from this work, I wouldn’t be here today.

As told to Michael Le Page

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Source: www.newscientist.com

Evidence of Ancient Life on Mars: Complex Carbon Discoveries Revealed

NASA's Perseverance Mars rover beside a rock resembling microbial features

NASA’s Perseverance Mars rover stands beside a rock with markings resembling microbial features.

NASA/JPL-Caltech/MSSS

NASA’s Perseverance rover has made a groundbreaking discovery of complex carbon compounds within a Martian crater, a site previously indicated as potentially harboring ancient life. On Earth, these compounds are often associated with biological remnants; however, scientists caution against jumping to conclusions, as such compounds can also emerge from non-living environments like meteorites.

In 2024, Perseverance explored a rocky outcrop named Bright Angel, located near what seems to be an ancient riverbed that once nourished a lake in Jezero Crater. Distinct mottling patterns observed on some rocks, dubbed “leopard spots” or “poppy seeds” by NASA scientists, comprise dark circular blotches measuring up to 1 millimeter in size. These patterns closely mimic those associated with ancient microbial activity on Earth.

While the possibility of abiotic origins remains, these signatures present some of the most compelling evidence for ancient life on Mars. However, comprehensive data regarding the chemical makeup and distribution of these patterns within the Bright Angel Formation was still lacking.

Equipped with advanced measurement tools, Perseverance is capable of providing crucial chemical insights about the rocks it examines, including the SHERLOC instrument. This tool uses ultraviolet laser reflections to identify elements and compounds present in rock samples.

According to Ashley Murphy, researchers at the Planetary Science Institute in Tucson, Arizona, utilized SHERLOC to detect large, complex carbon-containing molecules, known as polymeric carbon, on the surfaces of marked rocks within the Bright Angel Formation.

“On Earth, polymeric carbon is typically found in ancient rocks and can serve as a key indicator of past microbial life,” Murphy explains. “Identifying these organic macromolecules on Mars and other celestial bodies can enhance our understanding of the conditions that may once supported life.”

However, the finding of these carbon compounds does not automatically imply a biological origin, as they are also frequently discovered in meteorites, notes Lewis Dartnell from the University of Westminster, London. Murphy’s team also found that these compounds are linked to essential life-supporting minerals: carbonates and sulfates, which typically form in water-rich environments. “This context provides valuable insights into the geological environments where these organic materials exist,” Dartnell adds.

Jezero Crater is believed to have harbored abundant water at some point, making the presence of carbon compounds here consistent with expectations, according to team members like Kyle Uckert at NASA’s Jet Propulsion Laboratory in California. However, it is noteworthy that polymeric carbon has never been documented on the surfaces of such rocks before, raising questions about its resilience and distinctive nature compared to other carbon compounds found on Mars.

“Its widespread presence in the Bright Angel mudstone was unexpected in relation to other observations throughout the crater,” Uckert said. The reasons for this anomaly remain unclear, but Dartnell suggests that it may be an encouraging signal for discovering additional evidence of ancient life. “This detection confirms the potential for complex organic materials like these polymeric deposits to endure over geological timescales.”

While the SHERLOC tool can identify polymeric carbon, it cannot ascertain the precise composition of a compound beyond indicating it is carbon-rich, according to Sean McMahon from the University of Edinburgh, UK. “To determine if the carbon in these rocks is biologically derived, we would need to return samples to Earth,” he states.

Topics:

  • Mars/
  • Extraterrestrial Life

Source: www.newscientist.com

Earth’s Complex Life Could Endure 500 Million Years Longer Than Anticipated

Future Earth

What Will Earth Look Like in the Distant Future?

Bimal S/Unsplash

The sun is gradually getting brighter and expanding as it ages, eventually cooking the Earth before consuming it entirely. However, new research indicates that complex life may endure in this extreme Earth scenario far longer than previously estimated.

Observations of other stars suggest that our Sun will transition into a red giant in about 5 billion years, raising questions about how long our planet will remain habitable. In ecological terms, the final survivors of complex life will be the trophic biosphere, including plants both aquatic and terrestrial. Their survival heavily relies on Earth’s temperature and the crucial carbon dioxide levels essential for photosynthesis.

“The greenhouse effect acts as Earth’s thermostat, balancing CO2 levels to maintain a habitable temperature,” explains Jacob Haq Misra from Blue Marble Space in Washington. As temperatures rise, CO2 is absorbed into rocks, diminishing atmospheric levels and allowing some heat to escape.

This shift implies that as the Sun expands, CO2 will become the critical limiting factor for plant life. Previous estimates indicated that a threshold of about 10 ppm of CO2 in the atmosphere is necessary for plant survival; below this level, plants perish, leaving only microorganisms. This phenomenon is expected to occur roughly 1.35 billion years from now. While the exact longevity of these microbes post-plant extinction is uncertain, it is likely they will survive much longer.

Innovative simulations by Haq Misra and his colleague Eric Wolf suggest potential plant lifespans may be extended by an additional 500 million years. Their more sophisticated simulations account for specific plants, such as cacti and pineapples, that utilize a unique type of photosynthesis known as Crassulacean acid metabolism, which allows more efficient CO2 absorption. This could lower the CO2 starvation threshold to just 1 ppm, enabling the trophic biosphere to thrive for more than 1.8 billion years.


“Life on Earth is capable of much more than we might expect,” states Haq Misra. Over such extensive timescales, evolutionary adaptation could allow life to persist even longer, adjusting to the gradual warming triggered by the Sun’s expansion.

“These models suggest that we may be on the brink of understanding Earth’s complex biosphere, rather than approaching its end, as previously pessimistic scenarios suggested,” shares Edward Schwieterman from the University of California, Riverside. This insight is promising, as it implies that if we treat Earth as a representative example of a habitable world, our chances of discovering biospheres on other planets may be higher than previously anticipated. “This isn’t merely a philosophical query; it has practical implications: they are modeling a future Earth that we may be able to observe within the next 20 years.”

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Source: www.newscientist.com

The Arctic Ocean Nears a Tipping Point: A Looming Crisis for Marine Life

Satellite images reveal a significant phytoplankton bloom in the Arctic Ocean near Svalbard, contributing to a noticeable green hue.

Credit: European Union, Copernicus Sentinel 2 images

Melting sea ice in the Arctic is increasingly allowing sunlight to penetrate, which supports the growth of phytoplankton and other marine life. However, this phenomenon is causing nutrient depletion in certain areas, potentially disrupting the ecosystems that support seals, polar bears, and commercial fish populations in the North Atlantic.

Phytoplankton, essential photosynthetic organisms, serve as the foundation of the marine food web. Recent studies indicate unprecedented increases in phytoplankton blooms, as evidenced by satellite measurements of chlorophyll levels. However, since 2009, overall growth has notably slowed in many regions, particularly on the Atlantic side of the Arctic. Research from Raja Ganeshram and his team at the University of Edinburgh highlights how high phytoplankton levels in the Pacific are depleting nearby nitrate levels, critical for their development.

According to Ganeshram, “Arctic warming impacts ecosystems beyond just sea ice and temperature reductions. This affects food resources both in the Arctic and the North Atlantic, impacting the entire region in ways we are still deciphering.”

Nitrogen is a key nutrient for all forms of plant life, including terrestrial flora and phytoplankton. Recent findings show that nutrient-rich waters from the Pacific, flowing through the Bering Strait into the Chukchi Sea, are vital for sustaining phytoplankton productivity in the Arctic. These nutrients are carried by ocean currents to the Atlantic Ocean, particularly through the Fram Strait between Greenland and Svalbard.

The team led by Ganeshram analyzed nutrient data from the Fram Strait, gathered during icebreaker missions from 1998 to 2023. Their findings reveal a significant decline in nitrate levels since 2009, coinciding with a shift toward reduced sea ice extents. Most nitrate influx from the Pacific is absorbed in the Chukchi Sea, where melting ice exposes waters to more sunlight.

This increased phytoplankton growth leads to higher rates of decomposition, as aerobic bacteria break down the organic material, consuming oxygen. Once the available oxygen is exhausted, anaerobic microorganisms take over, decomposing phytoplankton and depleting nitrates. By the time these waters reach the Fram Strait, a vital nutrient has been lost.

This depletion means that diatoms, a type of algae that thrives in nitrate-rich environments, are no longer prevalent in the Fram Strait. Currently, microplankton dominate, as they can efficiently utilize nitrogen from ammonium sources. This shift may disrupt food chains, as smaller zooplankton must consume these smaller phytoplankton before they can transfer energy to larger organisms, further compounding the challenges for fisheries and human communities reliant on marine resources.

The changing dynamics of nutrient flow into the North Atlantic is expected to alter phytoplankton composition, with significant implications for commercial fisheries. These results suggest that phytoplankton growth is increasingly limited by nutrient availability rather than by sunlight, signaling a potential halt in growth across the Arctic Ocean. According to Jean-Eric Tremblay, a researcher at Laval University in Quebec City, not involved in the study, “This shows the Arctic Ocean may not become the future oasis we hope for. Increased phytoplankton production could enhance denitrification, further depleting nitrates and reducing productivity.”

The researchers conclude that the Arctic ecosystem has likely crossed a tipping point. “While year-to-year variations may occur, the recovery of sea ice to previous states is improbable,” says Marta Santos Garcia, also from the University of Edinburgh. “The ongoing loss of nitrate is unlikely to be reversible.”

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Source: www.newscientist.com

Why Quantum Physics Matters to Us Personally: Understanding Its Impact on Everyday Life

Embracing Quantum Physics: A New Perspective on Life

Kamil SD / Alamy

In December 2019, I faced a life-threatening ordeal caused by dental issues. A debilitating toothache escalated into a major health crisis, leading to a week in intensive care. After recovery, I needed answers: Was it personal negligence, sheer bad luck, or a flaw in the U.S. healthcare system? Confused and distressed, I turned to the field that has always offered me profound insights: quantum physics.

Physics, the oldest science, has roots in early astronomy. It provides a robust and objective framework for interpreting our universe. Through meticulous analysis and empirical evidence, physics dissects the world into components and reassembles them into a comprehensible whole. Unlike emotions, physics is impartial—no one escapes the grasp of a black hole. Yet, I’ve always perceived physics as a personal journey.

In my book Entangled States: Life Based on Quantum Physics, I invite readers to embrace this personal connection. I illustrate how viewing the objective through a subjective lens can be transformative.

Consider my dental crisis. After my hospital stay, I grappled with the causes of my condition. Was it my fault for avoiding the dentist? Or was it beyond my control due to my status as a financially strained graduate student? Juggling these contradictory narratives left me more baffled.

A discussion with a physicist specializing in quantum causality brought unexpected clarity. I learned about “quantum switches,” a concept allowing for multiple causal relationships to coexist through superposition. Despite some skepticism, experiments with light particles support this theory. Some researchers propose applying quantum switches in new technologies like quantum computers for enhanced performance.

As a physicist, I recognize that light behaves quite differently from larger, warmer entities like myself. Yet, the notion of a quantum switch, where both “A causes B” and “B causes A” unfold simultaneously, resonated deeply with my dental dilemma.

This perspective brought peace and influenced my choices. I now prioritize dental visits and advocate for improved conditions, including dental insurance, for graduate students.

In Entangled States, I delve into numerous examples that highlight how quantum physics has helped me navigate personal challenges. My experiences as a queer individual, a young immigrant, and a high school teacher intertwine with the lessons I’ve learned from quantum physics, both as an academic and a journalist.

Engaging with the cutting edge of science in the realm of quantum physics has profoundly impacted me. By merging its emotional resonance with objective scientific inquiry, I have enriched my life and grown as an individual. I encourage you to approach quantum concepts not just as abstract phenomena but as potential catalysts for personal reflection.

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Source: www.newscientist.com

How Parenthood Can Impact Your Love Life: Rekindling Romance After Kids

While parenthood can disrupt date nights, not all is lost in love.

Credit: Elena Odariva / Alamy

Feeling exhausted from caring for a newborn makes it seem like there’s little time for love. New research indicates that couples tend to feel less love for their partners in the first year of parenting. Fortunately, there are steps to rekindle that connection.

Previous studies demonstrate that relationship satisfaction often declines in the two years following childbirth, with pre-pregnancy conditions frequently overlooked. Dr. Agnieszka Sorokowska, a researcher at the University of Wroclaw in Poland, sought to explore these shifts in relationships.

Sorokowska and her team studied approximately 300 childless heterosexual couples, each in committed relationships for at least two years. Participants were surveyed every six months for two years, rating their feelings of love and commitment on a scale from 0 to 6.

After examining the data from 71 couples who welcomed children during the study, researchers found that while pregnancy itself had no adverse effects, there was a noticeable decline in feelings of attachment and commitment within the first year post-birth. Couples who remained childless did not experience similar changes.

At the recent Love, Practical and Theoretical conference in Edinburgh, Sorokowska announced intentions to follow these couples until their children reach adulthood to investigate potential long-term impacts. However, past research indicates that relationship satisfaction generally improves over time, showing a steep decline followed by gradual recovery after the initial years.

Dr. Valentina Rausch-Anderegg, an independent psychologist based in Zurich, affirms that new parents may experience significant distress as a result of these early relationship changes. “Not all couples will need therapy,” she notes, “but many will notice shifts in their interactions.”

Factors such as physical and hormonal changes during pregnancy, along with overwhelming childcare responsibilities, often contribute to this dynamic. “Even simple moments, like watching Netflix or taking walks together, can feel impossible,” Rausch-Anderegg explains.

To mitigate these challenges and rediscover the romance, she encourages couples to reach out to friends and family for support and to openly discuss their concerns. “Clearly communicate your vision for parenting. Identify what aspects of your relationship are essential, even after having children—be it an annual hike or dedicating a weekly 20 minutes to reconnect with your partner.”

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Source: www.newscientist.com

Exploring the Flourishing Complexity of Colonial Life During the Cambrian Explosion

Bryozoans, small colonial animals, were traditionally believed to have appeared millions of years after the Cambrian explosion. However, remarkable fossils discovered in 520 million-year-old rocks in China reveal that these fascinating creatures have been present since the dawn of time.



Reconstruction of the early Cambrian ocean floor showing Protomerision Gatehouse and Daingomellission Hexacritia flourishing in the shallow waters of Archaeossias Reef. Image credit: Zhifei Zhang.

Bryozoans are small, filter-feeding, colonial invertebrates that continue to thrive in the world’s oceans today. Yet, their origins remained a mystery for decades,” noted paleontologist Dr. Timothy Topper from Northwest University and the Swedish Museum of Natural History.

“While nearly all other major animal groups emerged during the Cambrian explosion around 530 million years ago, the fossil record for bryozoans remained conspicuously absent until the Ordovician period, roughly 50 million years later.”

In a groundbreaking study, paleontologists analyzed a stunning bryozoan fossil from the early Cambrian Sennudo Formation in China.

The samples represent two species: Protomerision Gatehouse and a newly recognized taxon, Daingomellission Hexacritia.

“For too long, bryozoans have been the missing link in Cambrian paleontology,” Dr. Topper stated.

“Except for bryozoans, all other significant animal phyla have Cambrian representations. This discovery definitively closes that gap.”



Specimen of Protomerision Gatehouse excavated from the sacrolactoid layer where a membranous sac is preserved. Image credit: Song et al., doi: 10.1038/s41586-026-10590-9.

This discovery not only fills a significant gap in the fossil record but also has profound implications for our understanding of the tree of life.

Phylogenetic analysis firmly places both Protomerision Gatehouse and Daingomellission Hexacritia within the Crown Group Stenolaemata, one of the three main classes of living bryozoans.

Since these fossils represent a more advanced branch of the Bryonidae family tree, their existence suggests that the origin of the entire group might date back to the Ediacaran period, even before the Cambrian explosion.

This study also confirms that Protomerision Gatehouse is indeed a bryozoan, despite some researchers proposing it might be a sclerotid derived from green algae or another unrelated organism.

New soft tissue data, along with detailed comparisons of colony size, shape, and internal structure, refute these alternative interpretations, clearly solidifying their association with bryozoans.



Specimen of Daingomellission Hexacritia showcasing colonies and cystids from the Xiannüdong Formation. Image credit: Song et al., doi: 10.1038/s41586-026-10590-9.

“These are not merely precursors; they are complex, modular colonies,” asserts paleontologist Baopeng Song from Northwest University.

“The combination of skeletal structure and internal anatomy provides definitive evidence that these represent true bryozoans, indicating that this phylum was already diversifying during the Cambrian radiation.”

“Together, the two Chinese taxa and previously reported Cambrian material from South Australia suggest that bryozoans were not only widespread in the early Cambrian oceans but also highly sophisticated in their development.”

“The concept of colonial body planning, where genetically identical individuals known as polypids cooperate within a communal skeleton, appears to have evolved as a core innovation of the Cambrian explosion itself rather than a late development.”

The team’s paper is published in the latest edition of Nature.

_____

B. Song et al. The high-fidelity modular skeleton proves the Cambrian origin of bryozoans. Nature, published online on June 3, 2026. doi: 10.1038/s41586-026-10590-9

Source: www.sci.news

New Scientist Highlights Rowan Hooper’s ‘Oneness’: A Groundbreaking Perspective on Life

Cover of 'Togetherness' by Rowan Hooper

Togetherness by Rowan Hooper

Discover the Sense of Unity
Rowan Hooper
(Fern Press released in the UK on June 4th.
Knopf released in the US on August 18)

The best books transform your understanding of the world. Togetherness
by Rowan Hooper offers not just fresh insights but a whole new lens through which to view existence. This remarkable work delves into the concept of symbiosis, exploring everything from cellular interactions to the Earth’s complex ecosystems, and revealing how biological cooperation is fundamental to all life—an aspect often overlooked by Western science for centuries.

Symbiosis, a concept often simplified during school lessons with seemingly miraculous examples such as corals and lichens, is vastly more common and integral than many realize. Rowan clarifies that it is a natural law consistently at play, repeated across environments and organisms.

Following his compelling arguments, he urges readers to reevaluate our perceptions of the natural world. By tracing the evolution of thought from Charles Darwin’s theories on competition to the often-neglected idea of cooperative survival among unrelated species, Rowan presents a nuanced understanding that honors both competition and collaboration.

In the gripping conclusion of Togetherness, Rowan addresses modern ecological crises, attributing many to our failure to appreciate how species interact symbiotically. He highlights scientists actively exploring ways to leverage these insights in environmental restoration efforts.

As a close collaborator of Rowan’s during my decade as podcast editor at New Scientist, my admiration for him may color this review of his third book. However, our podcast audience, The World, The Universe, and Us, can attest to Rowan’s enthusiasm for innovative concepts. Togetherness is not only ambitious but also immensely engaging.

Rowan’s call for an ecological perspective, supported by symbiotic principles, reflects his scientific background yet is enriched by insightful discussions ranging from Karl Marx’s thoughts on Darwin to Carl Sagan’s conversations with Lynne Margulis—truly a delightful read!

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Source: www.newscientist.com

Did Earth’s Water Enable the Evolution of Intelligent Life? | Cyworthy

Earth is a distinctive planet with remarkable features such as a magnetic field, a large moon, and dynamic plate tectonics. It is the only planet currently known to support life. These characteristics lead to the rare Earth hypothesis, which suggests that extraterrestrial life has not been discovered because other planets may lack the essential conditions necessary for supporting life.

Approximately 30% of Earth’s surface is land, while around 70% is covered by oceans. Recent research by David Kipping, an assistant professor at Columbia University, explored the ratio of land to ocean on Earth’s surface and how this percentage of land contributes to Earth’s habitability for complex life forms, including intelligent beings like humans.

Kipping developed four statistical models to analyze how varying land distributions could influence the evolution of intelligent alien life. He first established an equation to determine the likelihood of a planet existing within its habitable zone, focusing on specific parcels of land known as
probability distributions. His models weighted the distribution, suggesting a higher likelihood of planets being either covered by a large landmass or a vast ocean, rather than a mix like Earth.

Kipping used this land proportion distribution to calculate the chances that a random planet with similar proportions could support intelligent life. He examined four scenarios: 1) intelligent life is more likely to emerge on land-dominant planets, 2) it is more common on ocean-dominant planets, 3) balanced land and ocean planets are more conducive, and 4) the emergence of intelligent life is independent of land proportion.

To establish the likelihood of intelligent aliens existing on planets with land distributions like Earth’s, Kipping compared probabilities by calculating the ratios of outcomes. Since Earth is the only planet confirmed to have intelligent life, models indicating a higher probability of human presence provide crucial insights.

Kipping considered a ratio exceeding 10 between model predictions as strong evidence favoring one model over another. He found no such threshold was met in his comparisons. However, models favoring ocean-dominated or balanced land-ocean planets showed a 2.5 to 3-fold greater likelihood of predicting human existence compared to land-dominant models, with balanced models claiming the highest probability of human emergence, albeit slightly.

Kipping also contemplated whether the discovery of more planets with intelligent life would affect which model is deemed most realistic, especially if evidence of ancient life on Mars surfaces. He identified two complications: the uncertainty about the extent of Mars’ ancient water coverage, estimated between 25% to 81% land, and the notion that evidence of life does not equate to confirmation of intelligent life.

Despite these uncertainties, Kipping recalibrated his model under the assumption that ancient Mars had an Earth-like land area. This approach yielded ratios similar to previous Earth-exclusive calculations, indicating no single model could firmly predict intelligent presence on both Earth and Mars by a margin of 10.

To determine conditions exceeding the 10x threshold, Kipping calculated the necessary findings: astronomers would need to discover 14 additional planets with intelligent life and known land proportions to conclusively establish whether intelligent life emerges more frequently on desert, ocean, or balanced planets.

Kipping concluded that we cannot yet definitively state whether the land distribution on Earth plays a unique role in the emergence of intelligent species. However, Earth’s existence suggests that intelligent life is less likely to develop on extreme desert planets, casting doubt on the prospect of finding Tatooine or Jackass within our galaxy. While this research does not disprove the rare Earth hypothesis, it does challenge the notion that the vastness of Earth’s oceans is the primary factor behind Earth’s uniqueness.


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Source: sciworthy.com

How Capitalism Distorts Our Understanding of Ecology and the Origins of Life

2JKWR5N nuclear cells, derived from the union of multiple bacteria

The expression “survival of the fittest” is so closely linked to Darwinism that many mistakenly attribute it to Charles Darwin himself. However, this phrase was popularized by his contemporary Herbert Spencer. Nonetheless, it holds an element of truth. In On the Origin of Species, Darwin stressed competition as a key driver of evolution, shaped by the environments in which organisms develop.

Darwin characterized nature as a fierce battle for survival, not merely because he believed this to be true, but to resonate with an audience influenced by the era’s imperialistic and industrial narratives. During this time, thinkers like Thomas Malthus and Thomas Hobbes painted humanity as innately competitive and ruthless. Darwin’s critique of this viewpoint was valid. Over time, Darwinism has been misused to rationalize humanity’s darker actions.

Yet, viewing Darwin’s theories through alternative lenses can be enlightening. Even before the term “ecology” was introduced, Darwin recognized the importance of interconnectedness in natural systems. This perspective might hold keys to unraveling one of science’s biggest enigmas: the origin of life itself.


Darwinism cited as scientific justification for humanity’s worst sins

A promising pathway to elucidating how life emerged from non-life draws on concepts from microbiologist Carl Woese. He proposed that life likely evolved within a co-culture, consisting of loosely interconnected molecules.

Intriguingly, contemporary research indicates that essential elements and processes of life—including metabolism and genetic coding for proteins—can arise spontaneously through chemical reactions. Rather than perceiving life as a solitary victor emerging from “some warm little pond” (a phrase coined by Darwin), it may be more accurate to say that cooperation has been foundational to life’s development from its inception.

Source: www.newscientist.com

Neil deGrasse Tyson Discusses New Book, Alien Life on Earth, and Wormholes: Insights from the Renowned Astrophysicist

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Astrophysicist Neil deGrasse Tyson discusses his new book, “Take Me to Your Leader,” and who aliens should meet upon their arrival on Earth. He also talks about his experience with Stephen Colbert’s “wormhole” segment.

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Source: www.today.com

Scientific Dispute: The Risks of Lab-Engineered Bacteria in Mirror Life Research

Microbes engineered in the lab could use mirror images of molecules found in nature

Microbes Engineered in the Lab Utilize Mirror Images of Natural Molecules

THOM LEACH/Science Photo Library/Alamy

Modeling studies indicate that microorganisms based on mirror images of natural molecules face significant survival challenges outside controlled laboratory environments. This raises questions about developed methods for “mirror feeding” or other innovative sustenance solutions.

However, the study has drawn criticism from experts in the field, who caution that it may overlook substantial risks associated with these so-called mirror organisms.

Many crucial biomolecules, like DNA and proteins, exhibit chirality, allowing them to exist as either left-handed or right-handed forms. Similar to the left and right hands, they are mirror images and cannot be superimposed. Presently, all known life on Earth utilizes right-handed DNA and left-handed proteins, enabling compatible interaction within cellular mechanisms.

While not technically feasible at this time, producing organisms with reversed chirality may one day become possible. In 2024, a collaboration of 38 scientists published research, calling for a halt on studies aimed at creating mirror life due to potential threats these organisms could pose—such as immune systems failing to recognize mirror bacteria.

Research led by Ricard Sole and his team at the Santa Fe Institute explored the implications of introducing a small population of mirror organisms into Earth’s biosphere. They employed computer models to analyze the constraints mirror life forms would encounter in diverse ecological scenarios.

According to Sole, for mirror life to pose a threat, it must first be capable of existing autonomously. The primary obstacle for mirror organisms is their exclusive ability to digest food comprised of molecules matching their chirality.

“Envisioning the engineering of dedicated ‘mirror food’ to nourish mirror organisms complicates rather than resolves the issue,” states Sole. “The development of a distinct ‘mirror biosphere’ would necessitate a continuous industrial system to produce vast quantities of mirror chiral biomolecules, including mirror sugars, mirror amino acids, and mirror lipids, alongside isolated nutrients.”

The research model emphasized whether mirror organisms could autonomously colonize actual ecological settings rather than survive temporarily in laboratory conditions equipped with artificial feeding systems.

“We believe that mirror life will encounter formidable barriers across a range of ecological conditions, presenting challenges to successful establishment,” Sole elaborates. “Nonetheless, critical unanswered questions remain that warrant further exploration, including long-term evolutionary dynamics and more realistic models detailing immune interactions with mirror organisms.”

This study is currently available on a preprint server pending peer review. A group of scientists focused on mirror life has issued a statement urging revisions of the paper.

Bone Cooper, a co-author of the statement from the University of Pittsburgh, noted to New Scientist that although mirror microorganisms initially grow more slowly than their native counterparts due to nutrient mismatches, they can thrive on numerous achiral nutrients. “Moreover, the mirror cell population may quickly adapt, essentially generating a second tree of life,” Cooper asserts.

The study suggests that Earth’s existing biodiversity could function as a “firewall” against mirror organisms, as natural life forms are optimized for their environments, thus outcompeting mirror forms. In the case of mirror bacteria, Sole and his colleagues contend that the immune system may still identify them as foreign invaders.

Yet, Cooper remains skeptical. “Numerous examples from invasion biology highlight the susceptibility of biodiverse ecosystems to invaders that lack natural predators,” he remarks.

Kate Adamala, one of the 2024 authors from the University of Minnesota, supports Solé’s hypothesis regarding the scarcity of food rich in identical chiral molecules as a critical limitation for mirror organisms. “This intrinsic disadvantage is a universal hurdle for mirror life forms in any natural ecosystem,” she notes.

However, she adds that these organisms might utilize photosynthesis for self-sustenance or leverage naturally occurring chiral molecules. “Although creating such an organism would be incredibly challenging, it’s not entirely implausible,” Adamala explains. “At the time, it wasn’t clear why the broader scientific community stood firmly against labeling this possibility as ‘very unlikely.’”

Solé affirms that his team has contemplated the potential for mirror organisms to exploit non-chiral nutrients or photosynthesis but maintains that they would still confront significant ecological hurdles.

“The crucial inquiry is not merely whether some nutrients are available, but whether there is enough access to facilitate sustainable growth while contending with the established biosphere,” he emphasizes. “Even if mirror organisms could subsist on a limited selection of achiral compounds, they would still face severe ecological constraints, including resource quality, dilution, competition, and the inability to efficiently metabolize the majority of naturally available chiral biomolecules.”

Philippa Lentzos, a Professor at King’s College London, posits that while mirror life is a legitimate future concern, it should not detract from pressing immediate biological risks. “The appropriate response is not to panic or dismiss these findings but to advocate for prudent governance, clear protocols regarding hazardous work, and a comprehensive research agenda that does not neglect pressing biosafety and biosecurity priorities,” she states.

“The evidence presented in this study regarding ecological constraints does not negate the necessity for governance; instead, it underscores the importance of an evidence-based adaptive approach. We must discern the assumptions influencing risks, identify the uncertainties, and ascertain which types of work will significantly alter the situation,” Lentzos concludes.

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Source: www.newscientist.com

Exploring the Origins of Complex Life: Benthic Organisms as the Earliest Forms

Paleontologists have studied 1.75 billion-year-old microfossils from the ancient ocean floor of Australia, revealing that early eukaryotes—the ancestors of all plants, animals, and fungi—thrived in patches of oxygen-rich ocean floor for over a billion years before they ventured into the open ocean.



Eukaryotic fossils from Northern Territory, Australia. Image credit: Lechte et al., doi: 10.1038/s41586-026-10533-4.

Eukaryotes encompass a wide range of life forms, including humans, plants, animals, fungi, and various microorganisms.

Understanding their origins is crucial for grasping the evolution of life’s diversity and complexity on Earth.

“Our goal was to uncover the environments in which early eukaryotes existed, particularly to determine if these early fossils had acquired mitochondria, enabling them to thrive in aerobic conditions,” stated Professor Galen Halverson from McGill University.

“Interestingly, the earliest eukaryotes we studied already demonstrated some level of dependence on oxygen,” remarked Dr. Leigh-Anne Readman, a paleontologist at the University of California, Santa Barbara.

“The distribution of these fossils indicated they lived on or within the ocean floor,” she added.

In this groundbreaking study, paleontologists examined microscopic fossils preserved within fine-grained rocks found in the Macarthur and Billindudu basins of Australia’s Northern Territory.

Today, this area features diverse landscapes, from outback terrains and savannas to the lush environments of Kakadu National Park.

However, between 1.75 billion and 1.4 billion years ago, it was a shallow inland sea with lagoons, tidal flats, and calm coastal waters.

To decode the habitat of these ancient eukaryotes, researchers analyzed the rocks’ chemistry.

By examining oxygen-sensitive elements like iron, they confirmed that the seawater inhabited by these early eukaryotes was oxygen-rich, despite most oceans lacking oxygen during that time.

“We now understand that the earliest known eukaryotes lived predominantly in oxygen-abundant benthic (seafloor) environments near the coast,” Professor Halverson explained.

“This compelling evidence suggests that oxygen availability was a significant factor in the early evolution of eukaryotes,” Dr. Readman noted.

Historically, many scientists believed early eukaryotes existed without oxygen or floated within water columns.

The revelation that oxygen was integral to early life on Earth overturns longstanding assumptions.

The location of these fossils provided additional insights into how these primitive organisms existed.

Dr. Maxwell Lechte, a paleontologist from the University of Sydney, stated: “The fossil distribution implies that eukaryotes likely inhabited the ocean floor and didn’t venture into the open ocean until about a billion years later, when significant environmental changes occurred.”

This discovery aligns with recent studies on microorganisms closely related to eukaryotic ancestors, indicating their ability to utilize oxygen.

“Eukaryotes constitute most of the visible life around us,” Professor Halverson remarked.

“Understanding their origin remains a pivotal scientific challenge, key to comprehending the biodiversity we see on Earth and the potential for life on other habitable planets.”

A recent research paper detailing this study was published in Nature this month.

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MA Lechte et al. Early fossil eukaryotes were benthic aerobic organisms. Nature published online on May 20, 2026. doi: 10.1038/s41586-026-10533-4

Source: www.sci.news

How Ancient Crater Lakes Fostered Ideal Conditions for Earth’s Earliest Oxygen-Breathing Life

Groundbreaking research has unveiled the presence of stromatolites—layered structures created by microbial communities—within a 42,000-year-old asteroid crater in South Korea. This significant finding suggests that an ancient post-impact lake acted as an “oxygen oasis,” providing a vital habitat for early life.

A detailed analysis of stromatolites and lake sediments at the Hapcheon impact crater indicates that these formations may represent the oldest fossilized evidence of oxygen-producing microbial life on early Earth. Image credit: Lim et al., doi: 10.1038/s43247-026-03206-7.

“Stromatolites, which are layered organic sedimentary structures, have been identified as some of the earliest evidence of life on Earth, dating back approximately 3.5 billion years to the early Archean era,” stated lead author Dr. Jaesoo Lim and colleagues from the Korea Institute of Earth Science and Mineral Resources.

These layered structures form through the trapping and binding of sediment particles by microbial activity or through mineral precipitation triggered by microbial metabolic processes.

In the northwestern section of Hapcheon Crater, the research team discovered numerous stromatolites, each measuring between 10 to 20 centimeters in diameter.

“Geochemical analysis of the stromatolites unveiled crucial features, including traces of extraterrestrial materials and surrounding rock, as well as indications of alteration due to hydrothermal activity,” the researchers explained.

The inner layer exhibits a stronger hydrothermal signal, suggesting formation during an earlier, hotter phase.

“These findings collectively support the idea that stromatolites evolved in hydrothermal lakes that gradually decreased in temperature after the impact event,” they added.

Analysis indicates that the Hapcheon collision occurred roughly 42,300 years ago.

This discovery sheds light on the Great Oxidation Event, a significant period around 2.4 billion years ago when Earth’s atmospheric oxygen levels surged,” the scientists noted.

The impact-induced hydrothermal lake likely provided a unique habitat for oxygen-producing microorganisms to flourish.

Such environments have been referred to by the research team as “oxygen oases.”

The study also raises the prospect of similar habitats existing on early Mars.

Since Mars is believed to have had water-filled impact craters in its early history, these cratered environments could serve as promising sites in the search for signs of past life.

“This research presents the first comprehensive evidence that stromatolites can form in hydrothermal lakes generated by asteroid impacts,” Lim remarked.

“Such conditions may have favored the development of early microbial ecosystems.”

For more details, refer to the study published in the Journal, Communication Earth and Environment, on April 16, 2026.

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J. Lim et al. 2026. Discovery of stromatolite formation in post-impact hydrothermal lake environments and its significance for early Earth. Communication Earth and Environment 7, 334; doi: 10.1038/s43247-026-03206-7

Source: www.sci.news

Initial Tests Show Green Sand Carbon Dioxide Removal Poses No Threat to Marine Life

Beach in Southampton, New York Treated with Olivine Sand

Cheyenne Morrow

Initial studies of adding crushed olivine to ocean waters for atmospheric carbon dioxide absorption showed no adverse effects on the seafloor ecosystem during the first year.

While the New York State trial offers promising findings for this innovative carbon removal technology, researchers advise caution, as it may not encapsulate all potential negative impacts.

Emilia Jankowska from Hourglass Climate, the nonprofit organization conducting the study, stated that while the addition of olivine to the ocean should be regulated, “there are methods to minimize effects while maintaining effectiveness.”

The UN climate change agency highlights the necessity for carbon removal strategies, including reforestation and advanced carbon filtration methods, to achieve net-zero greenhouse gas emissions. With rising emissions, the aspiration to limit global warming to 1.5 degrees Celsius remains a challenge.

Olivine, a magnesium iron silicate mineral, is often found within the Earth’s mantle and reacts with CO2 when reaching the surface, forming stable compounds that can sequester carbon in the ocean for millennia.

A recent study indicated that spreading crushed olivine and similar silicates on crops could enhance this process, potentially removing up to 1.1 billion tons of CO2 annually. U.S. startup Vesta aims to introduce olivine directly into ocean waters, facilitating increased carbon absorption through bicarbonate formation.

However, olivine may contain trace amounts of heavy metals. Research has detected elevated nickel and chromium levels in crustaceans and mollusks exposed to olivine. There are concerns about sand potentially suffocating benthic organisms, such as crustaceans and worms.

In 2022, Vesta distributed 650 tons of olivine sand along Long Island’s coast, overlaying it with 13,500 tons of regular sand for shore reinforcement. However, as storms intensified, tides washed away much of the olivine.

Researchers collected sediment samples from shallow waters up to 160 meters offshore before and after adding olivine, and a year later. They compared these to samples from areas where only regular sand or no sand was added.

Among numerous species, only a minor decline was observed in the fringe bloodworm within the olivine-treated area, with overall benthic species’ abundance and diversity rebounding within two months. Species composition shifted similarly in regions where only regular sand was used, indicating common beach aquaculture practices.

Crucially, nickel, chromium, cobalt, and manganese concentrations in organisms remained low. “Natural systems are highly dynamic, causing dissolved elements to dilute rapidly,” Jankowska remarked.

While Vesta oversaw environmental monitoring for these trials, the analyses conducted by Hourglass were independently funded by the Grantham Foundation.

Olivine’s dissolution in ocean waters may lead to calcium carbonate precipitating from seawater, potentially trapping trace metals, as noted by Christopher Pierce at the UK National Marine Centre. Nevertheless, this might limit the additional CO2 absorption capacity of seawater.

This significant research transitions understanding from laboratory settings to real-world applications. Further investigation remains essential to comprehend varying biological responses and infection rates associated with CO2 ingestion.

Nonetheless, the study’s assertion of no negative effects may overstate the findings, according to James Kelly of Ocean Care. He notes that fluctuations in olivine concentrations could imply limited exposure, questioning the notion that olivine is inherently safe.

Hourglass Climate is currently tracking the results from a large-scale trial with Vesta. In 2024, 8,200 tons of olivine were identified 450 meters offshore from Duck, North Carolina. Preliminary insights suggest recovery in species richness and diversity, although metal accumulation analysis is ongoing.

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Source: www.newscientist.com

New Scientist Endorses David Attenborough’s ‘Making Life on Earth’ Documentary

David Attenborough on set in 1979 Life on Earth: The making of the series is explored in a new BBC documentary.

BBC

The nature documentary style pioneered by David Attenborough is now iconic, but it wasn’t always this way. When Life on Earth premiered in 1979, audiences encountered a groundbreaking format unlike anything they had seen before.

Initially, Mr. Attenborough’s path as a television executive could have led him to a desk job and eventually to the role of director-general of the BBC. However, he opted for a career in natural history storytelling. He dedicated himself to sharing his passion for wildlife through the ambitious series Life on Earth.

Attenborough meticulously crafted a script for 13 episodes that narrates the entire journey of life evolution before filming began. The production took place across 100 locations worldwide, spanned several years, and required a substantial budget of £1 million for its time. Notably, primatologist Diane Master faced challenges coordinating a shoot with gorillas in Rwanda, enduring weeks of correspondence to finalize details. Preparing for that shoot took an entire year and a half. The whole venture was a significant risk, albeit one he believed would yield substantial rewards, especially as color television began to gain traction—an ideal medium to showcase the vibrancy of the natural world.

Insights into this incredible journey are revealed in a captivating new documentary celebrating Attenborough’s 100th birthday on May 8th. This behind-the-scenes film features unseen footage, excerpts from Attenborough’s diary, and interviews with the team involved in this groundbreaking project. It illuminates their challenges and triumphs while capturing stunning footage, including Attenborough’s narrow escape from a coup d’état while seeking to film a coelacanth in the wild and the young photographer tasked with documenting the unique breeding process of “Darwin’s Frog.”

David Attenborough with mountain gorillas on set of Life on Earth

John Sparks

Ultimately, the risks were worthwhile. Broadcast bi-weekly on BBC2, watching Life on Earth became a cultural phenomenon, leaving pubs empty as viewers rushed to their screens. By the series’ conclusion, it amassed 15 million viewers.

Creating Life on Earth: Attenborough’s Greatest Adventure presents a humorous, nostalgic, and heartfelt tribute to the man who brought the wonders of the natural world into millions of homes.

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Source: www.newscientist.com

Explore the Latest Issue of Mirror Life in BBC Science Focus Magazine


Exploring Ozempic: A Path to Better Health?

Discover how GLP-1 medications may offer a promising solution to the obesity epidemic. What if we made these weight loss drugs accessible to everyone in need?

The Rise of Myopia: A Global Concern

Myopia rates are escalating worldwide. Scientists are now investigating the underlying causes and how contemporary lifestyle choices contribute to our collective vision impairment.

Unraveling the Dark Galaxy Mystery

Dark matter continues to baffle physicists. A recently discovered galaxy comprised of dark matter may provide crucial insights into this scientific enigma.

Wealth and Morality: A Complex Relationship

Accumulating wealth often seems to compromise ethical standards. Neuroscience is shedding light on how significant financial gains can distort our moral compass.

Plus

  • Cannabis: The debate over medical cannabis use is escalating. Does cannabis truly impact mental health?
  • Peptides: What motivates individuals to inject peptides into their bodies?
  • Q&A: This month, our experts answer intriguing questions: Which animals are most likely to escape from zoos? What’s the best approach to avoid car sickness? Why are carrots orange? Is creating sunlight on demand feasible? Does Earth have a heartbeat? Can any animals play musical instruments? What happens when two narcissists meet? Why do beer bubbles persist for so long? And more…

Issue No. 432 Released on April 23, 2026

Don’t forget, BBC Science Focus is also accessible on major digital platforms. Download our app on Android, Kindle Fire, and Kindle e-readers here. Additionally, check out our iOS app for iPad and iPhone users.

Source: www.sciencefocus.com

How Urban Living Affects Estrogen Levels: Understanding the Impact of City Life

How the Gut Microbiome Influences Hormonal Levels

Nopparit/Getty Images

Recent studies reveal that bacteria in our gut can recycle discarded sex hormones back into the bloodstream. Researchers found that individuals in industrialized societies host significantly more bacteria that perform this recycling than those in hunter-gatherer populations or non-industrialized farmers. This phenomenon may lead to elevated blood levels of certain sex hormones, presenting potential health risks.

“We don’t yet know how the body reacts to this increased input,” explains Rebecca Britten from Jagiellonian University School of Medicine in Poland. “However, the implications could be substantial.”

Sex hormones, including estrogen, travel in the bloodstream. Elevated hormone levels trigger a chemical signal in the liver, causing the hormone to be excreted via the intestines. Bacteria feed on a sugar molecule attached to the hormone, utilizing an enzyme named β-glucuronidase to remove this tag.

Once the tag is cleaved, hormones can be reabsorbed by the body and re-enter the bloodstream. Research indicates that a notable portion of excreted sex hormones undergoes this recycling process due to gut bacteria.

The term “oestrobolome,” introduced in 2011, refers to the collection of intestinal bacteria that influence estrogen levels. Recently, the term “Testbolome” was proposed, indicating gut bacteria’s role in altering testosterone levels as well.

The latest research, conducted by a British team, analyzed gut microbiome data from various populations, including hunter-gatherers in Botswana, rural farmers in Venezuela, and urban residents in Philadelphia and Colorado. The findings show that the estrogen recycling ability of gut microbes in industrialized populations is up to seven times greater and twice as diverse compared to hunter-gatherers or rural communities.

Interestingly, the study also highlights that formula-fed infants exhibit up to three times more recycling capacity and eleven times more diversity than breastfed infants. However, factors such as age, gender, and BMI did not significantly affect the oestrobolome composition.

Researchers are now investigating if the enhanced recycling capabilities linked to gene sequences translate to actual increases in estrogen levels in the bloodstream. It remains to be seen whether the body compensates for heightened recycling by adjusting hormone levels.

If certain individuals maintain high estrogen levels due to their microbiome, it could significantly impact fertility and overall health, potentially raising the risk for conditions like certain cancers. Conversely, increased recycling might be beneficial for those with low estrogen levels. “We shouldn’t automatically assume that higher estrogen recycling is detrimental,” Britten notes. “In some cases, it can be advantageous.”

Katherine Cook, a professor at Wake Forest University School of Medicine studying the microbiome’s connection to breast cancer risk, emphasizes the growing evidence of gut microbiome’s role in human health. However, she cautions that the current study’s cohort is primarily based in the United States, suggesting that including a European group could strengthen the findings.

Britten expresses her intention to explore the lifestyle factors contributing to these observed differences. “We want to gather more precise data for further research,” she remarks.

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Source: www.newscientist.com

Understanding How Dreams Become More Emotional and Symbolic Near the End of Life

Bright light symbolism in end-of-life experiences

People frequently report seeing bright lights during near-death experiences. This symbolism of transition is also prevalent in dreams as we approach life’s end.

Kirill Ryzhov/Alamy

Dying patients under palliative care often experience vivid dreams that feature deceased loved ones or symbols representing transition. Healthcare professionals observe that these dreams provide comfort and alleviate fears surrounding death.

Elisa Ravitti from the Regional Network of Palliative Care in Reggio Emilia, Italy, emphasizes that these end-of-life dreams “offer psychological comfort and meaning to those confronting their mortality.”

Ravitti led a survey involving 239 palliative care specialists—including doctors, nurses, and psychologists—focusing on the dreams reported by terminally ill patients.

Among the most prevalent dreams were encounters with deceased family members or pets. One notable example includes a woman who dreamt of her late husband reassuring her, “I’m waiting for you.” Such dreams fostered peace of mind and helped individuals come to terms with their mortality, as noted by Ravitti and her team.

Other dreams featured symbols like doors, stairs, and lights. One patient described a journey towards an open door radiating white light, suggesting a coping mechanism to explore the transition from life to death, according to the study’s authors.

Most individuals expressed feelings of “peace” and “comfort” regarding these end-of-life dreams and visions; only about 10 percent reported distressing experiences, such as one woman who dreamed of a monster bearing her mother’s face dragging her down.

Dr. Christopher Kerr of Hospice Buffalo in New York conducted a study revealing that terminally ill patients frequently dream of deceased loved ones, with such occurrences increasing as death approaches. His research indicates that “it’s not random who comes to you; it’s the individuals who have always loved you and kept you safe.” Dr. Kerr’s findings also suggest that dreams related to “preparing for departure” are common, with patients often describing visions of packing or riding a bus.

End-of-life dreams and visions have the potential to “reunite individuals,” Dr. Kerr notes. He recalls a poignant moment with a 70-year-old woman who cradled an invisible baby during a vision of her stillborn first child, signaling a source of solace for her painful loss. “Many veterans express their wounds and burdens through these end-of-life dreams,” Dr. Kerr remarked.

Dr. Kerr attributes the increasing frequency of dreams and visions as death nears to the concept of death as “a progressive sleep.” “Patients exist in a state between wakefulness and sleep, enhancing the vividness and realism of their dreams; often, they affirm that these experiences feel genuine rather than merely dreams.”

While we often perceive the end of life as a bleak experience, “our instinctual survival mechanisms respond to threats,” asserts Dr. Kerr. However, he notes that the final weeks of terminal illness can be filled with love and meaning, allowing patients to “inevitably come to terms with their situation.” He adds that one of the most remarkable aspects observed is a pronounced absence of fear.

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Source: www.newscientist.com

Revolutionary Method Proposed by Astronomers to Detect Alien Life Without Knowing Its Appearance

Introducing a groundbreaking “agnostic biosignature” method that detects patterns across exoplanets, indicating the potential to identify extraterrestrial life through its impact on entire planetary systems.



Harrison B. Smith and Lana Sinapayen utilized agent-based models to propose that if life spreads among star systems and modifies planets’ observable features, it could yield strong life signatures with minimal false positives. Image credit: Sci.News.

The quest for extraterrestrial life remains one of the foremost challenges in modern science.

In addition to artificially recreating the origins of life on Earth, researchers focus on planets both within and beyond our solar system.

Realistically, only a handful of locations within our planetary system offer viable prospects for finding extraterrestrial life.

Beyond our solar system, the possibilities are vast, yet they come with challenges. This makes it difficult to accurately link exoplanet characteristics to the presence of extraterrestrial life.

Conventional spectral biosignatures are prone to false positives, while technosignatures, though more reliable, require strong assumptions about the nature of life and its technology.

“We explored an innovative concept: what if we could detect life not by examining individual planets but by observing collective effects across multiple planets?” explained Dr. Harrison Smith from the Tokyo Institute of Science and Dr. Lana Sinapayen from the National Institute for Basic Biology.

In their recent paper published in Astrophysical Journal, the authors present the “agnostic biosignature,” a novel method that does not rely on detailed knowledge of life forms or their functions.

This approach is built on two foundational assumptions: that life can spread between planets (e.g., through panspermia) and that it can alter planetary environments over time.

The researchers employed agent-based simulations to model the spread of life through star systems and its effect on planetary characteristics.

They discovered that longer-lived life forms, which influence planetary environments, yield detectable statistical correlations between planetary locations and observable features.

Notably, these correlations emerge without needing to identify the specific biosignatures of each planet.

Scientists have devised a method to not only detect the existence of life but also to discern which planets are most likely to harbor it.

By clustering planets based on observable traits and spatial relationships, they could identify groups of planets likely affected by life.

This strategy emphasizes reliability over completeness; even if a life-hosting planet is overlooked, false positives are minimized.

This method is particularly valuable for determining follow-up observations when telescope time is constrained.

“By concentrating on the dynamics of how life spreads and interacts with its environment, we can explore life without needing a perfect definition or a singular unmistakable signal,” Dr. Smith stated.

“Regardless of whether life elsewhere differs fundamentally from life on Earth, large-scale impacts such as planetary dispersal or modification can still create detectable traces, making this approach intriguing,” Dr. Sinapayen added.

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Harrison B. Smith and Lana Sinapien. 2026. Agnostic biosignatures based on panspermia and terraforming modeling. APJ 1001, 102; doi: 10.3847/1538-4357/ae4ee3

Source: www.sci.news

Life as a Meteorologist in Chernobyl: Insights from 40 Years of Russian Occupation

Lyudmila Dyblenko – Chernobyl’s Guardian During the 2022 Occupation

Mykhailo Palinchak

On February 24, 2022, as Russian forces advanced into Ukraine, Lyudmila Dyblenko, head of the Chernobyl meteorological observatory, ordered her staff to evacuate. Unfortunately, she was unable to escape, as the exclusion zone around the Chernobyl nuclear plant fell under Russian occupation.

“We started gathering equipment and monitors, but it was too late,” Dyblenko recounted in the modest hut that hosts the weather station. Despite the dire circumstances, she heroically resolved to continue essential measurements—radiation, temperature, wind, and rainfall—that are crucial for scientists monitoring the situation in Chernobyl. “I chose to keep working,” she stated. “I truly love my job and my country.”

While monitoring is typically automated, power outages by March 9 left her equipment inoperable, making heating and cooking virtually impossible. The hut became the warmest refuge during her winter stay in Chernobyl, with a fire continuously lit and a comfortable desk to work at. Under occupation, conditions were increasingly challenging.

Dyblenko meticulously tracked Russian patrols, timing her exits to collect manual measurements, eventually using an older cell phone to transmit data due to its superior reception capabilities. Situated in the highlands of Chernobyl, she discovered nearby spots—a church and a truck park—where weak signals permitted data extraction.

“There is software that automatically compiles and sends data, but that was impossible during the power outage,” Dyblenko explained. “We had to do it manually.”

Unfortunately, as time passed, Russian soldiers grew bolder. At one point, someone forced their way into her house demanding cognac. She cleverly defused the situation by treating him as a mischievous child, saying, “Is this a restaurant?” Fortunately, he retreated, showing the power of her quick thinking.

Eventually, she spotted a small red light in the bushes near her scientific equipment, realizing a surveillance device had been placed there. Ignoring the threat, she persisted in her crucial work.

Thanks to her relentless efforts, there were no gaps in the data collected, allowing for uninterrupted scientific analysis of the Chernobyl Exclusion Zone during the occupation. In recognition of her bravery, Ukrainian President Volodymyr Zelenskiy awarded her one of the few medals given to a meteorologist during the ongoing conflict, a testament to her remarkable courage.

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Source: www.newscientist.com

How Modern Life is Impacting Your Estrogen Levels: Uncover the Causes and Effects

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The Gut Microbiome’s Profound Effect on Hormones

Nopparit/Getty Images

Recent studies reveal that gut bacteria play a crucial role in recycling discarded sex hormones back into the bloodstream. Researchers have discovered an alarming increase in these hormone-recycling bacteria within the guts of individuals from industrialized societies compared to those of hunter-gatherers and non-industrialized farmers. This shift could lead to elevated levels of certain sex hormones in the bloodstream, posing serious health risks.

“We are still learning how the body reacts to this increased hormone recycling,” states Rebecca Britten from Jagiellonian University School of Medicine in Poland. “The implications could be significant.”

Sex hormones, like estrogen, circulate in the bloodstream. When levels rise excessively, a chemical marker attaches to liver cells, prompting hormone excretion through the intestines. That marker, a sugar molecule, serves as food for specific gut bacteria. These bacteria utilize an enzyme called β-glucuronidase to detach the marker.

Once freed from the marker, hormones can be reabsorbed by the body and reintroduced into the bloodstream. Research indicates that a considerable fraction of excreted sex hormones is recycled by gut bacteria in this manner.

In 2011, the term “oestrobolome” was introduced to describe the gut bacteria influencing estrogen metabolism and blood levels in both men and women. Earlier this year, the term “Testbolome” was coined to refer to gut bacteria affecting testosterone levels.

The latest research conducted by a British team analyzed the oestrobolomes of hundreds of individuals from 24 distinct populations worldwide. This included hunter-gatherers from Botswana and Nepal, rural farmers from Venezuela and Nepal, and urban residents from cities like Philadelphia and Colorado.

Britten’s team specifically assessed gene sequences that encode the enzyme beta-glucuronidase, examining both the overall proportion and diversity of these sequences. The results indicate that industrialized populations possess an estrogen recycling ability that is up to seven times greater and twice as diverse compared to hunter-gatherer and rural communities.

Moreover, the study found that formula-fed infants exhibit significantly higher recycling abilities—up to three times more likely and eleven times more diverse than breastfed infants. Interestingly, factors such as age, gender, and BMI showed no correlation with oestrobolome differences.

Researchers aim to determine if the observed gene sequences indicating higher recycling capabilities correspond with increased estrogen recycling in practice and, importantly, whether this leads to elevated blood estrogen levels. The body’s ability to adjust hormone levels could also play a role in offsetting this recycling.

If certain individuals maintain elevated estrogen levels due to their microbiome, this could notably impact fertility and overall health, potentially heightening cancer risks. Nonetheless, in specific scenarios, such heightened recycling could yield benefits. Britten emphasizes, “While increased estrogen recycling is often deemed harmful, that perception may not be accurate. For some with very low estrogen levels, this recycling may be advantageous.”

“This intriguing study contributes to the expanding evidence highlighting the significance of gut microbiome functionality in human health and development,” remarks Katherine Cook, a Wake Forest University School of Medicine professor studying the microbiome’s connection to breast cancer risk.

However, she notes limitations, such as the predominance of the industrialized population being US-based. “Including an additional European group could have enhanced the findings,” Cook adds.

Britten is keen to identify lifestyle factors influencing the observed differences and plans to conduct further research to gather comprehensive data.

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Source: www.newscientist.com

Exploring the Quest for Immortality: Essential Questions to Consider Before Seeking Eternal Life

EAF952 End of road, dead end towards Salton Sea, with sign and barrier.

Despite their immense wealth, billionaires cannot evade the ultimate limit of mortality. No amount of money or the best medical care can change the inevitability of death. However, a groundbreaking startup named Nectome is poised to change the narrative around death and the human brain.

Nectome has pioneered a technology that preserves the brain’s physical structure within minutes post-mortem. Initially tested on pigs, the method aims to allow for the reconstruction of the ‘connectome’—a 3D map of the brain’s intricate structure—opening the door to potential revival.

It is essential to note that while the connectome can be mapped, how to recreate consciousness from it, if at all, remains a profound mystery. The complex nature of consciousness, coupled with its “hard problems,” continues to baffle scientists and researchers.

Beyond the scientific inquiries, significant ethical and legal questions arise. Can a brain be effectively digitized, or must it remain biological? Even if these hurdles are overcome, Nectome’s methodology necessitates medically-assisted death, a practice illegal in many regions. Nevertheless, those who opt for Nectome’s procedure may find solace in the hope that future advancements will lead to solutions, potentially allowing them to awaken centuries after their biological death.

A philosophical quandary remains: is a revived entity, emerging from a copy of a deceased brain, truly the same as its original owner? This question poses deep implications even as society contemplates the feasibility of Nectome’s treatments. Ultimately, anyone who undergoes this revolutionary process might be taking steps towards a form of immortality, presenting a profound challenge for us to consider in the realm of ethics and existence.

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Source: www.newscientist.com

Revolutionizing Cryonics: We’re Closer to Reviving Life from Cryogenic Freezing

Recent research findings suggest that long-term cryo-sleep and revival may no longer be purely science fiction. A study published in PNAS reveals intriguing advancements.

Scientists from Friedrich-Alexander-University Erlangen-Nuremberg (FAU) and Erlangen University Hospital successfully froze mouse brain tissue and restored its functionality upon thawing.

Although only a fraction of the brain tissue was revitalized, the neurons retained the ability to transmit electrical signals, sustaining complex processes essential for memory and learning.

“Before conducting the experiment, we weren’t sure it would succeed,” stated Dr. Alexander German, first author of the study from the Department of Molecular Neurology at Erlangen University Hospital, as reported by BBC Science Focus.

“Public focus is likely to transition from ‘pure science fiction’ to ‘serious scientific and technological challenges.’”

Nature’s Cryo-Sleep Solutions

Interestingly, nature already exhibits cryo-sleep capabilities. Siberian salamanders can endure temperatures as low as -50°C (-58°F), remaining in a dormant state for years in permafrost until conditions are favorable for revival.

This remarkable resilience is attributed to their liver, which produces glycerol—a natural antifreeze that inhibits the formation of ice crystals within cells.

Ice formation has historically obstructed human cryopreservation efforts, as crystals damage the intricate nanostructures of living tissues.

Current cryoprotective agents have their own drawbacks; many are toxic to sensitive cells, and fluctuations in their concentrations can disrupt fluid balance in tissues.

The Siberian salamander, the coldest amphibian on Earth, employs an extraordinary evolutionary strategy to freeze and thaw safely – Photo credit: Getty

The research team employed a technique known as vitrification. This process replaces much of the tissue fluid with a blend of cryoprotective agents, cooling the molecules rapidly enough to stabilize them in a glass-like state. While both ice and glass are hard solids, glass’s random structure prevents crystallization and subsequent mechanical damage.

German and his team utilized a custom solution called V3, meticulously optimized to reduce toxicity while inhibiting ice formation.

Focusing on the hippocampus—a brain region crucial for memory and learning—the researchers processed slices of mouse hippocampus, approximately three times thicker than a human hair, through increasingly concentrated V3 solutions before rapidly cooling them to -196°C (-321°F) on a copper cylinder chilled with liquid nitrogen, and storing them at -150°C (-238°F) for durations ranging from 10 minutes to 7 days.

Upon thawing, the structural integrity of the neurons was preserved, and electrical recordings confirmed that the neurons were active and communicating within hippocampal circuits.

The breakthrough was evidenced by the presence of long-term potentiation (LTP), a vital process that strengthens connections between frequently used neurons, serving as the cellular foundation for learning and memory—it continued to function effectively.

This was a significant finding for German, as LTP is a rigorous measure of brain function, dependent on a complex interplay of cellular mechanisms, including signaling chemicals, receptor activation, calcium ion processing, and a cascade of molecular events that fortify neuronal connections.

The successful maintenance of these processes post-vitrification indicates that the tissue emerged in remarkably good condition.

“This result demonstrates that the synaptic machinery remains sufficiently intact to support de novo plasticity after complete cryoarrest,” German stated.

Bridging Science Fiction and Reality

The immediate applications are terrestrial rather than interstellar. Surgeons who excise brain tissue during epilepsy surgeries often need to analyze it rapidly. With effective vitrification techniques, these samples could be preserved for re-examination years later.

Germany’s spin-off company, Hiber, is actively working on developing reliable technology for preserving human neural tissue, aimed at advancing drug discovery and disease research.

German also noted that the physics underlying long-term storage is surprisingly encouraging. When tissue drops below its glass transition temperature, molecular movement and chemical degradation essentially halt.

However, he mentioned that radiation could pose more significant challenges, especially if this technology is utilized in future long-distance space missions.

The vitrified tissue on the left remains intact, while the tissue on the right is compromised by crystallization and cracking – Photo credit: Alexander German

Expanding from Tissues to Organisms

Scaling up from thin tissue slices to entire organs—or even whole organisms—poses considerably different challenges.

In thin slices, antifreeze can diffuse from all surfaces effectively. In intact organs, however, delivery and removal through blood vessels becomes complex due to the blood-brain barrier.

If thawing occurs unevenly, the tissue risks cracking or partial recrystallization, jeopardizing the structure that vitrification aims to protect.

“Our PNAS study serves as proof of principle for neural cryobiology, rather than demonstrating cryostasis for complete organisms,” German emphasized.

“This study shows that adult mammalian brain tissue can recover near-physiological circuit function after being completely stopped in cryogenic glass without ice. This point addresses the concern that adult brain tissue is too fragile for cryopreservation.”

For German, the significance of this research is less about cinematic science-fiction narratives and more about tangible scientific advancements. “The cold version of the science fiction concept isn’t solely about interstellar travel; it’s about gaining time,” he explained.

“If medicine can develop more effective methods to preserve tissues, organs, and potentially patients, we may pave the way for better treatment options in the future.”

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Source: www.sciencefocus.com

Research Reveals How Draining Relationships Can Cost You Years of Your Life (With One Exception)

Recent research indicates that surrounding yourself with difficult individuals can speed up the aging process and even elevate your mortality risk. You can learn more about these findings in a study published in the Proceedings of the National Academy of Sciences.

So, why does this happen? Instead of enriching your life, “harassers” tend to heighten your stress levels. Chronic stress significantly contributes to biological aging, leading to inflammation, a weakened immune system, and a higher likelihood of cardiovascular diseases, which can result in heart attacks.

The authors of the study note, “Negative social connections were associated not only with self-reported stress and mental health but also with molecular measures of biological aging,” according to Dr. Lee Byung-gyu from New York University, as reported by BBC Science Focus.

This comprehensive study analyzed biological age and survey data from 2,345 participants aged between 18 and 103 years.

Researchers discovered that each additional troublesome person in one’s life could negatively affect health outcomes. Specifically, the pace of aging could increase by 1.5 percent, or roughly nine months of biological age. For example, having three harassers in one’s life may equivalently make a person biologically 2.5 years older than someone of the same chronological age without such stressors.

Additionally, the toll is even greater when the difficult individual is a family member.

According to Dr. Lee, not all harassers appear the same. “A nuisance could be a parent, sibling, friend, or someone in your inner circle who regularly causes conflict and drains your time and mental energy,” he explains.

In day-to-day life, this could manifest as a family member who frequently seeks assistance or criticizes you, a friend who generates drama, or a romantic partner who instigates persistent stress in your relationship.

Being surrounded by “haters” can be mentally draining; it might even shorten your lifespan – Credit: Getty

Does this sound familiar? You’re not alone. Research indicates that nearly 30% of individuals report having at least one harasser in their close circle.

Interestingly, the study revealed that having a troublesome spouse doesn’t exert the same detrimental effects on health. The benefits of shared routines, resources, and emotional intimacy can counteract stress responses that are often present in other relationships, as explained by Lee.

However, some individuals may be more susceptible to having difficult people in their lives. The study found higher instances among women, daily smokers, those in poor health, and individuals with challenging childhoods.

Lee commented, “One possibility is that people who already face higher stress levels and have fewer resources may struggle to avoid or disengage from difficult relationships, allowing chronic tension to permeate their daily lives.”

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Source: www.sciencefocus.com

Powerful Jaws of Early Triassic Cyclidan Crustaceans: A Deep Dive into Ancient Marine Life

Paleontologists have unveiled a fascinating new species of enigmatic ciclidan crustacean, identified from three exceptionally preserved specimens hailing from China’s Early Triassic Guiyang biota.



Yunnanosiculus fortis. Image credit: Sun et al., doi: 10.1002/spp2.70052.

The Cyclidae represent a unique group of arthropods that first emerged during the Carboniferous period and persisted until the late Cretaceous period.

Despite their significance, their fossil record is scant, as most findings only display the carapace (hard shell) of these creatures, with many anatomical features remaining elusive.

“Cyclida is an arthropod order integral to the Guiyang biota,” explains Dr. Xiaoyuan Sun from the China University of Geosciences, alongside collaborators from China and the United States.

“This specialized group of crustaceans originated in the Mississippi Sea (359-323 million years ago) and went extinct during the Maastrichtian (73-66 million years ago) of the Late Cretaceous Period.”

“They’re classified as crustaceans due to distinctive traits such as antennae, mandibles, and maxillae.”

“Sadly, our comprehension of ciclidan crustaceans remains limited because of their rarity in the fossil record.”

Typically, only the robust carapace is preserved, with the antennae and limbs being scarcely found.

The newly identified ciclidan species, designated Yunnanosiculus fortis, thrived during the late Dinerian period of the early Triassic, around 251 million years ago.

It is described based on three specimens sourced from the Daye Formation in Guizhou Province, China.

These fossils unveil an oval carapace featuring narrow, smooth margins, well-defined antennae, and seven pairs of thoracic segments.

Significantly, one specimen retains a pair of robust lower jaws, an exceptionally rare feature in ciclidan fossils.

The holotype’s carapace measures approximately 19.8 mm long by 14.7 mm wide, with the lower jaw spanning about 1.7 mm long and 0.8 mm wide.

Microscopic X-ray fluorescence analysis revealed elevated levels of calcium and phosphorus within the mandible and other structures, indicating they were thick and heavily calcified.

Yunnanosiculus fortis boasted a notably sturdy oval lower jaw,” the research team stated.



Holotype of Yunnanosiculus fortis. Scale bar – 2 mm. Image credit: Sun et al., doi: 10.1002/spp2.70052.

This remarkable discovery broadens the known geographic range of Early Triassic cichlidans.

Previously, fossils from this era were primarily registered from Madagascar and select regions of Europe.

The new species signifies the oldest record of cichlidans located in the eastern Tethyan area.

“The identification of this new species from China enhances our understanding of the paleogeographical distribution of Early Triassic cichlidans,” the researchers noted.

“Early Triassic cyclidans demonstrate widespread distribution across Madagascar, Europe, and China.”

“However, by the Late Triassic, their presence was predominantly limited to Europe.”

These fossils also provide insights into the evolutionary trajectory of these enigmatic creatures.

By examining the morphological data from Yunnanosiculus fortis, scientists reconstructed morphospace—an approach to analyze the diversity of body morphology within cichlidans and other related species.

The findings indicate that cichlidans underwent significant diversification early in their history during the Carboniferous period, with a gradual reduction in disparity in later geologic periods.

This pattern corroborates the “initial burst” model of evolution, where groups diversify rapidly soon after emerging, followed by a phase of slow evolutionary change.

This discovery further enriches our understanding of ecosystems following the Permian-Triassic mass extinction, which eradicated over 80% of marine life.

The fossil evidence from the Guiyang biota and other Early Triassic sites suggests that complex marine communities might have been reinstated earlier than initially believed.

By revealing new anatomical details and extending the geographic record of cichlidans, Yunnanosiculus fortis offers valuable insights into the recovery and evolution of marine life during one of Earth’s most chaotic periods.

“The addition of new species and the re-evaluation of the chronological paleogeography of Triassic cichlids illustrate that early Triassic cichlids were the most broadly distributed, with a gradual decline in distribution thereafter,” the authors concluded.

“This trend mirrors the global distribution of ammonoid and other marine invertebrate species during the Early Triassic and may relate to the reduction of environmental gradients in varying latitudinal zones post-Permian-Triassic mass extinction.”

The groundbreaking discovery of Yunnanosiculus fortis is discussed in the research paper published in the journal Paleontology Papers.

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Sun Xiaoyuan et al.. 2025. A new Induan (Early Triassic, Dinerian) cichlidan crustacean discovered from the Guiyang biota. Paleontology Papers 11 (6): e70052; doi: 10.1002/spp2.70052

Source: www.sci.news

Identifying the Hidden Dark Empath in Your Life: A Complete Guide

Empathy is widely viewed as a valuable trait. We nurture empathy in children to foster their ability to understand others’ emotions and offer support when necessary.

Research consistently highlights the advantages of empathy, contributing to strong social and interpersonal skills. However, what happens when this empathy is exploited? This leads us to the intriguing concept of the dark empath.







What is a Dark Empath?

To comprehend dark empaths, it’s essential first to grasp the concept of the dark triad.

The dark triad encompasses three personality traits: narcissism (an inflated sense of entitlement and grandiosity), psychopathy (marked by lack of remorse, superficial charm, and impulsiveness), and Machiavellianism (manipulative and strategic behaviors).

Now, envision someone who embodies all three of these traits while simultaneously possessing a high degree of empathy. This person is known as a dark empath.

A dark empath has a keen understanding of others’ emotions, yet instead of empathizing, they manipulate, guilt, or control them – Photo credit: Getty

The key distinction between Dark Triad individuals and Dark Empaths is that the latter can truly understand others’ emotions. While this may sound favorable, it’s detrimental when empathy is wielded as a tool for manipulation.

Dark empaths do not merely show increased general empathy; they often excel in specific forms of empathy.

Research identifies three distinct types of empathy:

  1. Emotional Empathy: The capacity to feel what another person is experiencing (e.g., tearing up while watching a touching film).
  2. Cognitive Empathy: Understanding another person’s emotional state without necessarily feeling the same emotion (for instance, recognizing someone’s distress after watching a sad movie).
  3. Compassionate Empathy: Comprehending someone’s feelings and actively helping them (like hugging someone who is sobbing after a sorrowful film).

Dark empaths can be particularly perilous due to their high level of cognitive empathy, which enables them to discern what others feel and require. This knowledge can then be manipulated to exploit others’ vulnerabilities for their gain.

Unlike their Dark Triad counterparts, Dark Empaths often exude an extroverted charm and appear likable in social contexts. Their exceptional social skills make them difficult to identify, fostering trust—a lethal combination.

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How to Identify a Dark Empath

So, how can you determine if someone you know is a dark empath? Look for individuals who excel at reading emotions but mainly utilize this skill for self-serving purposes rather than to offer genuine support.

Specific signs that may indicate someone is a dark empath include:

  • Their kindness feels insincere
  • They manipulate others for their own advantage
  • They possess strong social skills
  • They instill guilt or play on your insecurities

While these are not definitive indicators of a dark empath, they are cautionary signals worth noting.

Ultimately, it’s important to nurture and appreciate empathy while being vigilant about the motives behind it.

Do their intentions truly seem altruistic, or do they have hidden agendas?


This article (by Carol Steger, Colorado) addresses the inquiry: “What defines a dark empath?”

If you have any questions, please reach out to us at: questions@sciencefocus.com or message us on Facebook, Twitter, or Instagram (make sure to include your name and location).

Discover our ultimate collection of fun science facts. Explore even more amazing science content.


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Revolutionary Chemical Indicators: Detecting Alien Life Unlike Any Found on Earth

Enceladus, a moon of Saturn

Saturn’s moon Enceladus: A Prime Candidate in the Search for Extraterrestrial Life

Credit: NASA/JPL/Space Science Institute

A revolutionary method for detecting chemical properties of living organisms could unlock the secrets to identifying extraterrestrial life forms, even those with biochemical processes distinct from life on Earth.

In the quest for extraterrestrial life, scientists traditionally depend on biosignatures—substances or patterns that reliably signify the presence of life. By analyzing the atmospheres of distant planets, astronomers search for molecular biosignatures. However, many molecules associated with life can also arise from geological activities, suggesting a careful approach to interpretation.

A novel test developed by Christopher Carr and colleagues from Georgia Tech focuses on amino acids, which serve as fundamental components of proteins that sustain all known life forms. While amino acids can also be produced in lifeless environments, they have been uncovered in lunar soil, comets, and meteorites.

Given this, Carr and his team proposed that analyzing the reactivity of molecules within samples could provide more reliable biological indicators than merely detecting amino acids.

In non-living systems, molecules are continuously formed and destroyed as they react with environmental factors like cosmic rays. The more reactive a molecule, the more likely it is to decompose. “Without stable systems to maintain molecules, their reactivity increases,” explains Carr. However, living systems require reactive molecules, therefore they retain more reactive ones, creating distinct biochemical signatures.

The reactivity of compounds hinges on the arrangement of electrons in the molecules. More reactive molecules exhibit smaller energy differences between their outermost electron and the next available electron space during reactions.

Carr and his team calculated energy differences for 64 amino acids, including those not present in Earth’s biosphere. They analyzed the prevalence of these amino acids in samples sourced from both abiotic processes (like meteorites and lunar soil) and biotic sources (like fungi and bacteria), employing molecular energy calculations to establish a statistical framework for amino acid reactivity. This allowed them to estimate the probability of a sample being alive or inorganic.

After testing over 200 living and nonliving samples, they found their method could accurately identify life with 95 percent certainty. “This approach is remarkably straightforward,” Carr asserts. “It’s easily explainable and directly linked to the principles of physics.”

This reactivity-based method is applicable to the search for extraterrestrial life, as Carr posits that if life exists elsewhere, it likely relies on carbon-based chemistry and amino acids, governed by the same principles of chemical reactivity present on Earth. “Life inherently requires control over the timing, methods, and locations of molecular interactions. Therefore, structures that facilitate electron flow and molecular interactions are essential,” Carr notes.

While utilizing molecular reactivity to identify life isn’t new, measuring reactivity through statistical distributions is an innovative advancement. Henderson Cleaves from Howard University suggests that this method could enhance the toolkit of life-detection instruments on forthcoming space missions to Mars or the moons of Saturn, most notably Enceladus. However, Cleaves notes that the technology to accurately measure molecular abundance is a significant challenge.

Exploring the Mysteries of the Universe: Cheshire, England

Embark on a weekend with some of the brightest minds in science, diving deep into the mysteries of the universe, featuring a tour of the iconic Lovell Telescope.

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Source: www.newscientist.com

Marine Geoengineering Test Shows No Harm to Marine Life: Findings Revealed

Impact of Alkaline Sodium Hydroxide on the Gulf of Maine’s Carbon Dynamics

Daniel Cojanu, Undercurrent Productions, ©Woods Hole Oceanographic Institution

Can we effectively remove carbon dioxide from the atmosphere to mitigate ocean acidification? A recent test shed light on this as a research team injected 65,000 liters of alkaline sodium hydroxide into the Gulf of Maine in August 2025.

“We were pioneers in exploring the enhancement of alkalinity using a ship,” stated Adam Subhas from the Woods Hole Oceanographic Institution in Massachusetts. The team shared their preliminary findings at the Marine Science Conference on February 25th in Glasgow, UK. “It’s clear we observed increased CO2 absorption due to this experiment.”

Over the span of four days, the team indicated that between 2 to 10 tons of CO2 were extracted from the atmosphere, with a potential total of up to 50 tons. Importantly, no adverse effects on marine ecosystems were noted.

Nonetheless, Subhas highlighted a critical point: the team hasn’t calculated the emissions produced during the manufacturing and transport of the sodium hydroxide, leaving the net CO2 removal outcome uncertain. “That’s an essential area for future research,” he remarked.

The ocean acts as a significant carbon sink, storing 40 times more carbon than the atmosphere and absorbing over a quarter of the excess CO2 emitted. This surplus CO2 reacts with ocean water to create carbonic acid, leading to increased ocean acidity.

Ocean acidification can severely impact various marine organisms by dissolving carbonate shells, thereby diminishing the ocean’s carbon absorption capacity.

Researchers are actively investigating numerous strategies to counteract ocean acidification, such as adding magnesium hydroxide to wastewater, spreading crushed olivine on beaches, and transporting seawater to onshore treatment facilities. Some companies are even marketing carbon credits based on alkalinity enhancement.

“This is indicative of current private sector initiatives,” Subhas explained, emphasizing the need for non-commercial trials like their team’s.

Given the sensitive nature of such experiments, the team engaged local stakeholders, particularly the fishing community. “Establishing a two-way dialogue is crucial,” asserted Kristin Kreisner of the Environmental Defense Fund, a New York-based nonprofit.

The testing involved three ships and was meticulously monitored using various methods, from satellites to floating sensors and ocean gliders. Sodium hydroxide was mixed with a trace dye called rhodamine to accurately track its dispersion.

The researchers measured concentrations of microorganisms, plankton, fish larvae, and lobster larvae, as well as photosynthetic activity levels. According to Rachel David at Rutgers University, New Jersey, “Our trials did not significantly impact the biological community.”

The additional carbon introduced into the ocean through increased alkalinity converts into bicarbonate ions, akin to dissolved baking soda. “We anticipate this carbon will remain locked for tens of thousands of years, making it one of the most sustainable carbon removal methods,” Subhas noted.

The nature of this process allows CO2 to be removed and stored simultaneously, providing benefits over other methods that necessitate separate CO2 capture and permanent storage.

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Source: www.newscientist.com

Unlocking Longevity: How Rapamycin Could Add Years to Your Life – A High-Stakes Gamble

Illustration of rapamycin molecule

Rapamycin Molecule: Potential for Life Extension

Science Photo Library

The lifespan benefits derived from fasting and rapamycin usage resemble a lottery rather than a guaranteed outcome. While significant lifespan increases have been observed within a year, reanalysis indicates that results can vary significantly among individuals.

Talia Fulton, a researcher at the University of Sydney, mentions, “[They] may enhance your lifespan marginally [they] could dramatically increase it.”

The 2025 study examined 167 research papers across eight non-human species, including fish, mice, rats, and rhesus macaques. Fulton and her team discovered that when these animals were treated with rapamycin, a promising anti-aging compound, alongside calorie restriction — known for fostering longevity — they exhibited a longer lifespan on average. This suggests the same potential could extend to humans.

Current research has investigated the varied responses to longevity interventions in individual animals, revealing significant variability in benefits. Fulton notes that while taking rapamycin or implementing dietary restrictions appears “likely to be advantageous, the degree remains uncertain.”

According to her, “Some may experience considerable lifespan extension, while others may see minimal impact, or not outlive their expected lifespan.” This variability creates a somewhat unpredictable environment, meaning these treatments cannot guarantee lifespan extension for all individuals.

Fulton emphasizes that the objective of longevity interventions is to balance the population size with life expectancy through a squared curve. This implies that more individuals could lead longer lives, contrasting with the current trend of fewer individuals achieving longevity. “Squaring the survival curve means a larger number will lead extended and fulfilling lives until around 100, at which point mortality becomes almost certain,” she elaborates.

Current findings indicate that dietary restrictions and rapamycin do not effectively square this longevity curve. In this context, Fulton advises holding off on high expectations until further research clarifies who stands to benefit most from these approaches. “We aspire to decode individual genetic variables and life histories, ultimately determining ‘This is precisely what you need to achieve maximum longevity,'” she states.

Researchers like Matt Kaeberlein from the University of Washington stress that squaring the curve does not inherently mean enhanced health profiles. A more compelling consideration, he argues, is whether longevity initiatives, such as exercise, influence “healthspan inequality.”

Originally developed as an immunosuppressant for organ transplant patients, rapamycin inhibits the mTOR protein, essential for cell growth and division. At lower doses, it has demonstrated the potential to extend lifespan in species like flies and mice, potentially by safeguarding against DNA damage.

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Source: www.newscientist.com

Exploring Microbes with the Smallest Genomes: Redefining the Boundaries of Life

Symbiotic Bacteria Inside Insects: A Closer Look

Provided by: Anna Michalik et al.

Recent research reveals that symbiotic bacteria residing within insect cells possess the smallest genomes of any known organism. This groundbreaking discovery challenges the boundaries between organelles like mitochondria and highly simplified microorganisms.

“It’s challenging to define where this highly integrated symbiont ends and the organelle begins,” states Piotr Łukasik from Jagiellonian University in Krakow, Poland. “The line is exceedingly blurred.”

Planthoppers are unique insects that exclusively consume plant sap, relying on an ancient symbiotic relationship with bacteria to enhance their nutrition. Over millions of years, these microbes have adapted to inhabit specialized cells in the planthopper’s abdomen, generating essential nutrients that the insect’s sugary diet alone cannot provide. Many of these bacteria have become dependent on their hosts, having drastically reduced their genetic structures compared to their ancestors.

Łukasik and his team explored the evolution of this relationship and the minimization of bacterial genomes. They sampled 149 insects across 19 planthopper families, extracted DNA from their abdominal tissues, and sequenced this DNA to map the genomes of symbiotic bacteria like Vidania and Sulcia.

These bacterial genomes are notably small, with a total length of under 181,000 base pairs. In contrast, the human genome spans several billion base pairs.

Vidania, with its genome measuring a mere 50,000 base pairs, holds the record for the smallest known form of life. Previously, Nasuia, a symbiotic bacterium from leafhoppers, held this title with just over 100,000 base pairs.

To put this in perspective, Vidania‘s genome size is comparable to non-living viruses, such as the COVID-19 virus, which has a genome of about 30,000 base pairs. Remarkably, Vidania contains only around 60 protein-coding genes, the fewest recorded.

Planthoppers Depend on Symbiotic Bacteria for Nutrients

Provided by: Anna Michalik et al.

These bacteria have co-evolved with their insect hosts for approximately 263 million years and have independently developed very small genomes within two distinct categories of planthoppers. Notably, one of their primary functions is producing the amino acid phenylalanine, crucial for strengthening insect exoskeletons.

Research suggests that significant gene loss may occur when insects consume new food sources rich in nutrients previously supplied by bacteria or when other microbes colonize and assume these roles.

The characteristics of these highly reduced bacteria bear a resemblance to mitochondria and chloroplasts—energy-producing organelles in plants and animals that evolved from ancient bacteria. Symbiotic bacteria, like organelles, live inside host cells and are transmitted across generations.

“‘Organelle’ is a term open to interpretation, and it’s acceptable to classify these entities as organelles,” states Nancy Moran from the University of Texas at Austin, who was not part of the study. “However, the distinctions between them and mitochondria or chloroplasts remain clear.”

Mitochondria, which have a longer evolutionary history of over 1.5 billion years, only contain about 15,000 base pairs in their genomes.

Łukasik posits that these bacteria and mitochondria function along different points on an evolutionary “gradient of dependence” on their hosts, hinting that even smaller symbiont genomes may still be undiscovered.

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Source: www.newscientist.com

RNA Strands with Near-Self-Replication Potential: The Key to Understanding the Origin of Life

Artist's depiction of QT45 RNA molecule

Artist’s depiction of QT45 superimposed on a microscopy image of a frozen environment conducive to RNA replication (based on AlphaFold3 predictions)

Microscope images by Elfie Chan and James Atwater

According to the RNA World Hypothesis, life initiated with RNA molecules that evolved to replicate themselves. Recent discoveries reveal an RNA molecule capable of this self-replication, executing essential processes, though not simultaneously.

“It’s been a long quest to reach a point where we confidently state RNA can replicate itself under the right conditions, showcasing its potential,” says Philip Holliger at the MRC Molecular Biology Laboratory, Cambridge, UK.

In living organisms, proteins are pivotal, catalyzing chemical reactions while their synthesis instructions are encoded in double-stranded DNA. RNA, existing typically as a single strand, serves as a chemical analog of DNA.

While RNA is not as reliable for information storage due to its instability, it exhibits a unique capability: folding into protein-like enzymes that catalyze chemical reactions. This dual function of RNA as both storage and catalyst led to the hypothesis in the 1960s that the genesis of life may have hinged on self-catalyzing RNA molecules.

However, identifying such self-replicating molecules has proved exceptionally challenging. It was previously assumed that self-replicating RNA would be relatively large and complex, yet large RNAs are cumbersome to spread and duplicate.

Furthermore, while shorter RNA molecules have been known to form spontaneously under suitable conditions, the likelihood of larger molecules doing the same remains low.

“This insight led us to reconsider; perhaps something simpler and smaller could efficiently complete this process,” Holliger explains. “That search yielded QT45.”

RNA comprises nucleotide building blocks. The research team initiated the process by generating 1 trillion random sequences, each 20, 30, or 40 nucleotides long. They selected three capable of binding nucleotides and combined them for several rounds of evolution, introducing random mutations to enhance performance.

The resultant molecule, QT45, is composed of just 45 nucleotides. In alkaline, near-freezing water, single-stranded RNA can serve as a template to join short strands of two or three nucleotides, creating complementary strands, including those that mirror itself. “Although the process is currently slow with low yields, this is expected,” notes Holliger.

QT45 can also replicate itself using its complementary strands. “This is the first instance of RNA that can generate itself and its coding strand, representing the two core reactions of self-replication,” states Holliger. However, the team has yet to achieve both reactions occurring within the same container. Future efforts will focus on further evolving the molecule and experimenting with conditions like freeze-thaw cycles to see if simultaneous reactions are possible.

“The most fascinating aspect is that once the system begins self-replication, it also starts self-optimization,” Holliger adds, as the error-prone process generates various variants, some potentially more effective at replication.

“The findings from the Holliger lab represent a vital step toward fully self-replicating RNA.” asserts Sabine Muller from the University of Greifswald, Germany.

“A key takeaway from this discovery is the identification of intermediate-sized RNA oligomers capable of self-synthesizing,” remarks Zachary Adam at the University of Wisconsin-Madison.

The vast number of possible 45-nucleotide-long RNA sequences is “inconceivably large,” Adam notes, making the team’s discovery of QT45 from an initial batch of 1 trillion sequences mind-boggling.

In early Earth’s environment, a molecule akin to QT45 might have successfully replicated itself amidst conditions similar to those in modern-day Iceland, combining ice with hydrothermal activity that creates freeze-thaw cycles and pH gradients. Holliger believes compartmentalization is essential to segregate key components, with numerous possibilities for this occurrence, from pockets of meltwater in ice to cellular vesicles spontaneously formed from fatty acids.

Topics:

  • Chemistry /
  • Origin of Life

Source: www.newscientist.com

Unveiling the Hidden Life of Giant Viruses: Are They More Alive Than We Realize?

Mimivirus Illustration

Illustration of Mimivirus: A Giant Virus Infecting Amoebae

Credit: Science Photo Library / Alamy

Viruses exploit host cell machinery to produce proteins, with certain large viruses encoding essential components within their genomes to instruct host cells to generate viral proteins. This phenomenon emphasizes how giant viruses challenge the distinction between living and nonliving entities.

Since the discovery of the mimivirus in Bradford, England in 2003, which infects amoebas, biologists have increasingly focused on these giant viruses. Some exhibit sizes larger than typical bacteria, complex shapes, and possess numerous genes.

Among these genes are those that code for components involved in translation—the biological process that turns genetic information into proteins. In cellular biology, translation occurs through ribosomes, initiated by molecular assemblies known as initiation complexes.

To investigate whether giant viruses possess a similar system, Max Fells and his team from Harvard Medical School explored the dynamics within infected amoebas and the manipulations by mimivirus post-infection.

The researchers isolated ribosomes from infected cells and identified the viral proteins linked to them. “This was our initial clue that these might be the elements we were seeking,” said Fells.

Subsequently, they knocked out the gene responsible for the viral complex by substituting it with a modified DNA sequence, resulting in a virus that could not synthesize the corresponding protein. This intervention decreased virus production by up to 100,000-fold and severely inhibited the formation of new infectious particles.

These findings collectively indicate that during an infection, viral complexes potentially redirect the protein synthesis machinery of the host to significantly boost the production of viral structural proteins, even under extreme conditions like nutrient scarcity and oxidative stress, which typically hinder protein synthesis in host cells.

This discovery introduces a profound evolutionary inquiry: how did these viruses acquire such capabilities? Some researchers propose that giant viruses may descend from ancient cellular life forms, while others suggest they evolved from typical viruses through gene acquisition from their hosts.

“Giant viruses have acquired a diverse array of cellular machinery from their eukaryotic hosts over evolutionary time,” stated Frank Aylward from Virginia Tech, who was not part of the study. Genetic exchange can occur during viral infection, allowing natural selection to favor advantageous genes over extended evolutionary periods.

Many of the largest viruses dominate the internal environment of single-celled organisms, which presents more variability than the relatively stable environments of multicellular hosts. Consequently, this flexible control over protein synthesis may confer a significant evolutionary advantage, Aylward noted.

This research also raises critical questions. The mimivirus genome comprises approximately 1,000 proteins, the majority of which remain functionally enigmatic. It remains unclear how these viruses intricately control protein production throughout a single infection cycle.

“Viruses have traditionally been regarded as passive participants in the evolution of living systems,” stated Hiroyuki Ogata from Kyoto University, Japan. “This study demonstrates that giant viruses can reconfigure molecular systems that are fundamental across the spectrum of life.”

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Source: www.newscientist.com

Revolutionary AI: The Ultimate Solution for Managing Your Phone Calls, Bills, and Life Tasks

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The Evolution of Generative AI: Meet OpenClaw

Since the launch of ChatGPT, Generative AI has transformed our digital landscape over the past three years. It has spurred a significant stock market boom, integrated into our search engines, and become an essential tool for hundreds of millions of users daily.

Despite its benefits, many still hesitate to use AI tools. But why? While asking AI for text, audio, images, and videos can save time, crafting the right prompts often becomes a burdensome task. Users still grapple with everyday chores like answering emails, booking appointments, and paying bills.

This is where AI’s true power lies; handling the mundane tasks. The promising concept of “agent AI” suggests that people desire an efficient, always-on assistant to tackle time-consuming tasks. The latest advancement in this field is OpenClaw.

What is OpenClaw?

OpenClaw, previously known as ClawdBot, is an AI agent poised to fulfill AI’s grand promises. Once granted access to your computer files, social media, and email accounts, it can efficiently complete various tasks. This capability is powered by Claude Code, a model released by the AI company Anthropic.

Developed by software engineer Peter Steinberger and launched in late November 2025, ClawdBot initially gained traction but was rebranded due to concerns from Anthropic. After temporarily adopting the name MoltBot, it is now officially known as OpenClaw. (Mr. Steinberger did not respond to multiple interview requests.)

How Does OpenClaw Work?

OpenClaw operates on your computer or a virtual private server and connects messaging apps like WhatsApp, Telegram, and Discord to coding agents powered by models like Anthropic’s Claude. Users often opt for a high-performance device, like the Apple Mac Mini, to host OpenClaw for optimal speed. Due to increasing demand, some shops are reporting sold-out status.

Although it can run on older laptops, OpenClaw needs to stay operational 24/7 to execute your specified commands.

Commands are sent through your preferred messaging app, enabling a simple conversational interface. When you message OpenClaw, the AI agent interprets your prompt, generates, and executes commands on your machine. This can include tasks such as finding files, running scripts, editing documents, and automating browser activities. The results are succinctly summarized and sent back to you, creating an efficient communication loop akin to collaborating with a colleague.

How Can OpenClaw Help You?

OpenClaw serves as an all-in-one assistant for both personal and professional tasks. Users typically start by decluttering files on their devices before transferring the tech’s prowess to more complex responsibilities. Some users report utilizing it to manage busy WhatsApp groups by summarizing necessary information and filtering out the irrelevant.

Other practical applications include:

  • Comparing supplier prices to minimize household spending.
  • Automating web browser tasks for seamless transactions.
  • Facilitating restaurant reservations by calling venues directly.
  • Preparing initial drafts for presentations while you sleep.

What Are the Risks?

While OpenClaw’s capabilities shine brightest when granted extensive access, this convenience raises significant risks. Experts warn that users may overlook potential vulnerabilities. For instance, OpenClaw could be exposed to prompt injection attacks or hacking if hosted on insufficiently secured virtual servers. This means sensitive data could be compromised.

Alan Woodward, a cybersecurity professor at the University of Surrey, cautions, “I can’t believe people would allow unrestricted access to sensitive software, including email and calendars.”

White hat hackers have already identified several security flaws in OpenClaw, raising concerns about the hands-off approach many users prefer, which simultaneously invites substantial risk.

Is This the Future of AI?

OpenClaw has recently launched its own social network, Moltbook, enabling its AI agents to interact and share insights. While humans can observe, they cannot engage directly in discussions, prompting fears about progression toward artificial general intelligence (AGI), potentially matching or exceeding human capabilities.

As we navigate this new realm, it’s vital to consider the implications of relinquishing extensive data access to AI agents. We may be standing on the brink of a new AI era—an agent capable of managing your life efficiently, if you’re prepared to grant it free access and relinquish control. It’s a thrilling yet daunting prospect.

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Source: www.sciencefocus.com

Scientific Insights on How to Live a Meaningful Life

A meaningful life can be filled with small acts of kindness.

Reuters/Eric Gaillard

The Dalai Lama has long stated that our primary purpose in life is to help others. Research indicates that making a positive impact on others significantly contributes to a sense of meaningful existence.

While some skeptics argue that human life lacks intrinsic meaning, this question has captivated philosophers for centuries. Researchers at the University of Eastern Finland highlight the importance of identifying activities and thoughts that foster a sense of meaning, which can assist therapists in guiding their clients.

In their quest to unravel this complex question, researcher Florian Koba and his team conducted extensive studies, including an online survey targeting hundreds of U.S. residents.

During several experiments, participants evaluated fictional characters, determining the meaningfulness, happiness, and desirability of their lives. For example, respondents admired Amelia, a lottery winner who generously donates to charities combating poverty and hunger, while also traveling to support these initiatives.

In subsequent studies, participants ranked various definitions of a meaningful life, assessing how they perceived their own existence on scales of meaning and fulfillment.


“Our findings revealed four dimensions,” says Führer. Three consist of coherence, purpose, and a sense of meaning—key elements that have been noted in previous studies. However, Führer and Cova emphasize the discovery of a fourth dimension: the positive impact of our actions on others.

Other psychologists suggest that understanding, purpose, and significance are fundamental to a meaningful life—feeling that one’s existence carries weight and enduring value. Nonetheless, the latest research argues that the ‘significance’ many refer to is inherently tied to the positive effects of our actions, contributing to an overall sense of fulfillment. “I completely agree that such concepts are core to experiencing meaning,” remarks Tatiana Schnell from the MF Norwegian School of Theology in Oslo. “However, the terms ‘influence’ and ‘significance’ are fundamentally interchangeable.”

Schnell’s studies suggest four aspects encompassing meaning, including existential belonging, which denotes having a place in the world, coupled with significance, coherence, and purpose. Furthermore, recent papers indicate that social support can provide individuals with a sense of meaning.

Ultimately, Schnell asserts that achieving a sense of meaning does not imply that every dimension of meaning is addressed. “The critical factor is to avoid areas in life that feel inconsistent, insignificant, or devoid of belonging,” she explains.

According to Frank Martela from Aalto University in Finland, many individuals express that their work feels meaningless. “They might receive a paycheck but feel unfulfilled,” warns Martela. In such cases, individuals may experience a lack of purpose, leading to feelings of hopelessness or depression.

Fuhrer and Schnell propose that to create a more profound impact, we must transcend self-centered pursuits and invest time in endeavors that benefit others. “Reflect on your identity, aspirations, and your potential contributions to the world, and find ways to sustainably support others,” suggests Schnell. Even small daily gestures, such as bringing coffee to a colleague, can imbue your life with meaning and purpose.

Source: www.newscientist.com

Exploring How Gas Fuels Diverse Microbial Life in Caves – Sciworthy

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Caves are often dark, damp, and remote. While they lack the nutrients and energy sources that sustain life in other ecosystems, they still host a diverse array of bacteria and archaea. But how do these microorganisms acquire enough energy to thrive? A team of researchers from Australia and Europe investigated this intriguing question by examining Australian caves.

Previous studies identified that microorganisms in nutrient-poor soils can harness energy from the atmosphere through trace gases, including hydrogen, carbon monoxide, and methane. These gases are present in minute quantities, classified as trace gases. Microbes possess specific proteins that can accept electrons from these gas molecules, enabling them to utilize these gases as energy sources, such as hydrogenase, dehydrogenase, or monooxygenase, fueling their metabolic processes.

The Australian research team hypothesized that cave-dwelling microbes may be using trace gases for survival. To test this, they studied four ventilated caves in southeastern Australia. The researchers collected sediment samples at four points along a horizontal line that extended from the cave entrance to 25 meters (approximately 80 feet) deep inside the cave, resulting in a total of 94 sediment samples.

The team treated the sediment samples with specific chemicals to extract microbial DNA, using it to identify both the abundance and diversity of microorganisms present. They found multiple groups of microorganisms throughout the cave, including Actinobacteria, Proteobacteria, Acidobacteria, Chloroflexota, and Thermoproteota. Notably, the density and diversity of microbes were significantly higher near the cave entrance, with three times more microorganisms in those regions compared to further inside.

The team utilized gene sequencing to analyze the microbial DNA for genes linked to trace gas consumption. Results revealed that 54% of cave microorganisms carried genes coding for proteins involved in utilizing trace gases like hydrogenases, dehydrogenases, and monooxygenases.

To assess the generality of their findings, the researchers searched existing data on microbial populations from 12 other ventilated caves worldwide. They discovered that genes for trace gas consumption were similarly prevalent among other cave microorganisms, concluding that trace gases might significantly support microbial life and activity in caves.

Next, the researchers measured gas concentrations within the caves. They deployed static magnetic flux chambers to collect atmospheric gas samples at four points along the sampling line, capturing 25 milliliters (about 1 ounce) of gas each time. Using a gas chromatograph, they analyzed the samples and found that the concentrations of hydrogen, carbon monoxide, and methane were approximately four times higher near the cave entrance compared to deeper areas. This suggests that microorganisms might be metabolizing these trace gases for energy.

To validate their findings further, they constructed a static magnetic flux chamber in the lab, incubating cave sediment with hydrogen, carbon monoxide, and methane at natural concentration levels. They confirmed that microbes also consumed trace gases in controlled conditions.

Finally, the researchers explored how these cave microbes obtained organic carbon. They conducted carbon isotope analysis, focusing on carbon-12 and carbon-13 ratios, which can vary based on microbial metabolic processes. Using an isotope ratio mass spectrometer, they determined that cave bacteria had a lower percentage of carbon-13, indicating their reliance on trace gases to generate carbon within the cave ecosystem.

The researchers concluded that atmospheric trace gases serve as a crucial energy source for microbial communities in caves, fostering a diverse array of microorganisms. They recommended that future studies examine how climatic changes, such as fluctuations in temperature and precipitation, might influence the use of atmospheric trace gases by cave-dwelling microorganisms.

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Source: sciworthy.com

Discovering Prototaxites: Unveiling a Hidden Frontier of Complex Life

For over 165 years, the enigmatic prototaxite has stood as one of the earliest giants to rise from Earth’s barren landscapes, defying simple classification. These towering, columnar organisms dominated the terrestrial environment over 400 million years ago, reaching impressive heights of 8 meters (26 ft), long before the advent of trees. A recent study conducted by paleontologists from the University of Edinburgh and the National Museums of Scotland posits that this mysterious entity was not merely a giant fungus, as often presumed, but rather belonged to an entirely extinct lineage of complex life.



Prototaxites dominated terrestrial ecosystems 410 million years ago as the largest living organisms. Image credit: Matt Humpage.

The prototaxite marks the first giant life form on Earth’s surface, emerging during the late Silurian to late Devonian periods, approximately 420 to 370 million years ago.

Recognized for their pillar-like fossils that can reach up to 8 meters, they played a crucial role in early terrestrial ecosystems well before the emergence of trees.

These organisms were widely distributed across ancient terrestrial environments and were likely consumed by arthropods, marking a pivotal stage in land colonization and holding significant ecological importance.

Despite over 165 years of inquiry, the biological identity of prototaxite remains a topic of heated debate among paleontologists, who contest whether it is a fungus or belonged to a distinct, entirely extinct lineage of complex eukaryotes.

In a groundbreaking study, Dr. Corentin Rollon and colleagues examined Prototaxites Taichi, found preserved in remarkable three-dimensional detail within the 407-million-year-old Rhynie Chert in Aberdeenshire, Scotland.

“The Rhynie Chert is a remarkable treasure trove,” noted Dr. Rollon, the lead author of the study published in this week’s edition of Scientific Progress.

“This site represents one of the oldest fossilized terrestrial ecosystems, and its well-preserved biodiversity enables innovative approaches like machine learning applied to fossil molecular data.”

“Numerous other specimens from the Rhynie Chert are preserved in museum collections, contributing vital context to our findings.”

The research team investigated new specimens of Prototaxites Taichi, identifying the largest known example of this species at the site, facilitating detailed anatomical and molecular comparisons with fossil fungi found in the same deposits.

Microscopic imaging revealed a complex internal structure that diverges significantly from any known fungi.

The fossil comprises three distinct types of tubes, including large, thick-walled tubes featuring annular stripes and dense spherical regions known as medullary points.

These intriguing features form a complex 3D network of interconnected tubes, suggesting a branching pattern unheard of in fungal biology.

Researchers employed infrared spectroscopy and machine learning techniques to classify molecular fingerprints from prototaxite alongside those of fossil fungi, arthropods, plants, and bacteria found in Rhynie Chert.

Fossilized fungi from this location maintain characteristic chemical signatures linked to chitin-rich cell walls, which were intriguingly absent in ancient prototaxite.

The team also searched for perylene, a biomarker associated with pigment compounds produced by specific fungi, previously detected in other Rhynie Chert fossils. However, no such compounds were found in the prototaxite sample.

Collectively, the structural, chemical, and biomarker findings imply that prototaxite does not align with any known fungal group, including the earliest forms of modern fungi.

“This research marks a significant advancement in a 165-year-long discussion,” stated Dr. Sandy Hetherington, the senior author of the paper.

“These organisms represent life forms distinct from those we currently recognize, displaying different anatomical and chemical characteristics from fungi and plants, thereby belonging to a unique, now-extinct lineage of complex life.”

“Our study combines chemical analysis and anatomical insights into prototaxite, revealing that it cannot be classified within any known fungal group,” explained co-author Laura Cooper.

“As earlier researchers have discounted classifications to other large and complex life forms, we conclude that prototaxite belonged to an entirely distinct lineage of extinct complex life.”

“Thus, prototaxite symbolizes independent evolutionary experiments in constructing large and complex organisms, known to us only through exceptionally preserved fossils.”

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Corentin C. Rollon et al. 2026. Prototaxites fossils are structurally and chemically distinct from both extinct and extant fungi. Scientific Progress 12(4); doi: 10.1126/sciadv.aec6277

Source: www.sci.news