Author Archives: Igor Mitreski

Research on the various cloud layers, temperature hot spots, and shifting chemistry found in the extraterrestrial realm

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New observations from the NASA/ESA/CSA James Webb Space Telescope support the presence of three specific functions in the atmosphere (clouds, hot spots, and changes in carbon chemistry) of the rapidly rotating and free floating planetary mass object SIMP J013656.5+093347.

Impressions of the artist of SIMP 0136. Image credits: NASA/ESA/CSA/J. Olmsted, Stsci.

SIMP J013656.5+093347 (SIMP 0136 for short) is a rapidly rotating, free-floating object located just 20 light years from Earth.

It may have a mass of 13 Jupiter masses, does not orbit the star, and instead may be a brown dwarf.

Because it is separated, SIMP 0136 can be directly observed and is not afraid of mild contamination or variability caused by the host star.

The short rotation period, only 2.4 hours, allows for very efficient investigation.

“We've been working hard to get into the world,” said Allison McCarthy, a doctoral student at Boston University.

“We also thought that it might have an effect on temperature fluctuations, chemical reactions, and perhaps the activity of the aurora affecting brightness, but we weren't sure.”

Webb's NirSpec Instruments We captured thousands to 5.3 micron spectra of SIMP 0136. The object completed one full rotation, so I captured it one at a time, one at a time, one at a time, one at a time, over 3 hours.

This led to immediate observation Webb's Milli Musical Instrumentshundreds of measurements of light between 5 and 14 microns were collected. One is one every 19.2 seconds, one in another rotation.

The results were hundreds of detailed rays, each showing a very accurate wavelength (color) brightness change, with different sides of the object rotating into view.

“It was incredible to see the entire range of this object change over a few minutes,” said Dr. Joanna Foss, an astronomer at Trinity College Dublin.

“Until now, we only had a small near-infrared spectrum from Hubble, but we had some brightness measurements from Spitzer.”

Astronomers almost immediately noticed that there were several distinct ray shapes.

At any time, some wavelengths were growing brightly, while others were either dimmed or not changing at all.

Many different factors must affect brightness variation.

“Imagine looking at the Earth from afar,” said Dr. Philip Muirhead, a former member of Boston University.

“Looking each color individually gives you a variety of patterns that tell you something about the surface and the atmosphere, even if you don't understand the individual features.”

“As the ocean rotates towards vision, blue increases. The brown and green changes tell us something about the soil and vegetation.”

To understand what could cause variability in SIMP 0136, the team used an atmospheric model to show where each wavelength of light is occurring in the atmosphere.

“The different wavelengths provide information about the different depths in the atmosphere,” McCarthy said.

“We began to realize that the wavelengths that had the most similar ray shapes also investigated the same depth and reinforced this idea that they must be caused by the same mechanism.”

For example, one group of wavelengths occurs deeply in the atmosphere where there may be patchy clouds made of iron particles.

The second group comes from high clouds, which are thought to be made from small grains of silicate minerals.

Both of these light curve variations are related to the patchiness of the cloud layers.

The third group of wavelengths appears to be occurring at very high altitudes far above the clouds and tracking temperatures.

Bright hotspots may be associated with previously detected auroras at radio wavelengths, or hot gas upwelling from deeper in the atmosphere.

Some light curves cannot be explained by clouds or temperature, but instead show variations related to atmospheric carbon chemistry.

There may be chemical reactions in which carbon monoxide and carbon dioxide pockets rotate within and outside of view, or alter the atmosphere.

“We still don't understand the chemical part of the puzzle yet,” Dr. Vos said.

“But these results are really exciting because they show that the richness of molecules like methane and carbon dioxide can change over time from location.”

“If you're looking at a deplanet and only have one measurement, you should assume that it may not be representative of the entire planet.”

Survey results It will be displayed in Astrophysics Journal Letter.

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Allison M. McCarthy et al. 2025. JWST weather report from isolated exoplanet analog SIMP 0136+0933: pressure-dependent variability driven by multiple mechanisms. apjl 981, L22; doi: 10.3847/2041-8213/AD9EAF

Source: www.sci.news

Solar heat may impact seismic activity on Earth

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According to new research by scientists at Tsukuba University and the Japan National Institute of Advanced Industrial Science and Technology, heat from our sun promotes changes in the atmosphere temperature on Earth and changes in the atmosphere temperature on Earth.

The sun is seen by solar orbiter in extreme ultraviolet rays from a distance of approximately 75 million km. This image is a mosaic of 25 individual images taken on March 7, 2022 by the high-resolution telescope of an extreme ultraviolet imager (EUI) instrument. The image, taken at a wavelength of 17 nanometers in the extreme ultraviolet region of the electromagnetic spectrum, reveals the corona, the upper atmosphere of the sun, with a temperature of about 1 million degrees Celsius. Image credits: ESA/NASA/SOLAR ORBITER/EUI Team/E. Kraaikamp, ​​Rob.

Seismic studies have revealed many of the fundamentals of earthquakes: the tectonic plates move, strain energy accumulates, and that energy is ultimately released in the form of an earthquake.

However, when it comes to predicting them, there is still much to learn to evacuate cities before a catastrophe like the 2011 magnitude 9.0 Tōhoku earthquake

In recent years, research has focused on possible correlations between the sun or moon and seismic activity on Earth, with several studies pointing to tidal or electromagnetic effects that interact with the Earth's crust, core, and mantle.

In a new study, Matheus Henrique Junqueira Saldanha and his colleagues explored the possibility that solar-induced climate could play a role.

“Solar heat can promote changes in atmospheric temperature, which can affect rock properties and groundwater movements, among other things,” said Dr. Junqueira Saldanha.

“Such variations can make rocks more brittle and more prone to breaking, for example. And changes in rainfall and snow thaw can change the pressure on the boundaries of the tectonic plate.”

“Those factors may not be the main factors that cause earthquakes, but they may still play a useful role in predicting seismic activity.”

Using mathematical and computational methods, researchers analyzed seismic data along with solar activity records and surface temperatures on Earth.

Among other findings, they observed that when the surface temperature of the earth was included in the model, predictions of particularly shallow earthquakes are more accurate.

“That makes sense because heat and water mostly affect the upper layers of the Earth's crust,” said Junqueira Saldanha.

The findings suggest that solar heat transfer to the Earth's surface affects seismic activity, but this is only a small measure, and incorporating predictions of solar activity into a detailed earth temperature model could help issue seismic predictions.

“It's an exciting direction and I hope our research will shed some light on the larger picture of what causes earthquakes,” said Dr. Junqueira Saldanha.

study Today I'll be appearing in the journal chaos.

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Matheus Henrique Junqueira Saldanha et al. The role of solar heat in seismic activity. chaos 35, 033107; doi:10.1063/5.0243721

Source: www.sci.news

Researchers find that melting ice sheets are causing a reduction in the speed of the world’s strongest ocean currents

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Antarctic Circulating Current (ACC), which is more than four times as strong as the Gulf Stream, is the world’s strongest ocean current and plays an unbalanced role in the climate system due to its role as a major basin conduit. Scientists at the University of Melbourne and the Research Centre in Nordic Norway have shown that ACC will slow by about 20% by 2050 in high carbon emission scenarios. This influx of freshwater into the southern ocean is expected to alter the properties such as the density (salinity) of the ocean and its circulation patterns.

Sohail et al. High-resolution ocean and sea ice simulations of ocean currents, heat transport, and other factors were analyzed to diagnose the effects of temperature changes, saltiness, and wind conditions. Image credit: Sohail et al. , doi: 10.1088/1748-9326/adb31c.

“The oceans are extremely complex, finely balanced,” says Dr. Bishakhdatta Gayen, liquid mechanic at the University of Melbourne.

“If this current ‘engine’ collapses, serious consequences, including more climate change, including extreme extreme climate variability in certain regions, will accelerate global warming due to a decline in the ability of the ocean to function as a carbon sink. “

The ACC acts as a barrier to invasive species, like the southern burkelp and marine vectors such as shrimp and mollusks, which travel in the current from other continents reaching Antarctica.

If this current slows and weakens, it is more likely that such species will head towards the fragile Antarctica, potentially serious effects on food webs, which could change the available diet of Antarctic penguins, for example.

The ACC is an important part of the marine conveyor belt around the world, moving water around the world and linking the Atlantic, Pacific and Indian seas. These are the main mechanisms of exchange of heat, carbon dioxide, chemicals and biology throughout these basins.

In their study, the authors used Gadi, the fastest supercomputer in Australia located on the Access National Research Infrastructure.

They discovered that transport of seawater from the surface to the deepest could also be slower in the future.

“If ice melting accelerates as predicted by other studies, slowdowns are predicted to be similar in low emission scenarios,” Dr. Sohail said.

“The 2015 Paris Agreement aims to limit global warming to 1.5 degrees Celsius above pre-industrial levels.”

“Many scientists agree that we have already reached this 1.5 degree target, which could have an impact on the melting of Antarctic ice, making it even hotter.”

“Cooperative efforts to limit global warming (by reducing carbon emissions) will limit the melting of Antarctic ice and avoid the expected slowdown in ACC.”

This study reveals that the effects of ice melting and ocean warming on ACC are more complicated than previously thought.

“The melted ice sheets throw a large amount of fresh water from salt water into the salty sea.”

“This sudden change in ocean salinity has a series of results, including weakening of subsidence to the depths of surface seawater (called Antarctic bottom water), and based on this study, it includes weakening of the powerful marine jets surrounding Antarctica,” Dr. Gayen said.

study Published in the journal Environmental Survey Letter.

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Taimoor Sohail et al. 2025. Decreasing the polar current in the Antarctic due to polarization. environment. res. Rent 20, 034046; doi:10.1088/1748-9326/adb31c

Source: www.sci.news

The Cretaceous period larvae possessed advanced eyes

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Paleontologists have discovered three racewing larvae in Myanmar's 100 million Kachin amber with large forward trunks (the eyes of Holometabolan). These specimens show highly developed, simple eye convergent evolution of at least two additional lines, indicating the enormous diversity of Cretaceous larvae.

A larva from Kachin Amber, 100 million years ago. Image credit: Haug et al. , doi: 10.1111/1744-7917.13509.

Adult insects are known for their fascinating and complicated eyes. This allows you to achieve amazing sensory feats when performing functions such as food and peers search.

However, in many insect larvae, these eyes are not yet developed. The simple eyes known as the stem are usually sufficient for these larvae. Often, it is a machine that is mostly eating at this stage.

However, some insect larvae are predators, and a few of these have developed highly efficient imaging systems from simple stems.

“The adults and pups of beetles, bees, flies, butterflies and close relative insects also have complex eyes that are present in some larvae,” says Dr. Carolin Haug, researcher at Ludwig-Maximilians-Universität München.

“In contrast, most holometaboran larvae have a small group of up to seven simple eyes, known as stems, on either side of the head.”

“The trunk is inherent to holometaborane, usually a simple structure, often slightly radial oriented, creating a wide field of view.”

“However, the fields of the right and left trunks rarely overlap, but denies binocular vision in the larvae.”

“And more, most stems lack the complex internal structures needed to create images.”

“In contrast, several predatory holometaboran larvae evolved anteriorly directed stems, which were expanded with overlapping fields of vision that promote binocular vision.”

“Examples include the larvae of diving beetles known as water tigers, tiger beetles, anthraion and the Whirlgihi beetle.”

“The trunk has been reported in over 120 fossil larvae, but no imaging eyes have been identified that allow binocular vision.”

In a new study, the authors discovered three predatory larvae with unusually large and positive trunks in the Cretaceous Cachin Amber.

They found that the size and orientation of the larvae eyes are comparable to the size and orientation of modern anthraions, allowing for similar optical resolution.

“This is evidence of the first fossils of such an eye and therefore the oldest,” Dr. Haug said.

“The highly refined, simple eyes of predatory larvae evolved with a further double convergence, not just anti-, water tigers and tiger beetles, but also at least among extinct larvae.”

“Our results reveal greater diversity in morphology, ecology, and feeding strategies among Cretaceous larvae than today.”

Survey results Published in the journal Insect Science.

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Karolyn Haug et al. Cretaceous horny larvae with binocular vision show convergent evolution of refined, simple eyes. Insect SciencePublished online on February 18th, 2025. doi:10.1111/1744-7917.13509

Source: www.sci.news

How NOAA’s reduction in cutting methods impacts weather forecasting reliability

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A devastating tornado near Minden, Iowa in April 2024

Jonah Lange/Getty Images

Wide range of firing and staffing changes at the National Oceanic and Atmospheric Administration (NOAA) could reduce the reliability of the country's weather forecasts, according to several researchers and the American Meteorological Association.

“The consequences for Americans will be vastly broad, including increasing vulnerability to dangerous weather,” the organization states: statement.

More than 880 NOAA employees have been fired under President Donald Trump's control. statement From US Senator Maria Cantwell. This includes researchers working to improve hurricane predictions and build next-generation weather models, as well as more than 200 people within the National Weather Service, part of NOAA. According to two former NOAA employees, another 500 people accepted an offer to resign from their previous “Folk in the Road” offer, and shouted more for the agency.

A NOAA spokesman declined to discuss shootings and staffing changes. They said the agency will “continue to provide weather information, forecasts and warnings based on our public safety mission.” However, external researchers and former NOAA employees say the cuts could reduce the quality of the agency's weather forecasts.

The change states, “it has a clear cascade effect that affects predictions, even what people are watching on the phone via third parties.” Kari Bowen University of Colorado at Boulder University.

Cuts can quickly affect alerts about extreme weather like tornadoes and hurricanes, and in the long run, even commercial weather apps rely on modeling from NOAA, allowing general weather reports to be more accurate. Below are four ways experts can predict a shooting storm, and four ways that resignation can affect weather forecasts.

Delayed Tornado Warning

National Weather Service operates a network of 122 weather forecasting offices nationwide. At least 16 offices in the central part of the country's prone to tornadoes are currently understaffed. William Galls At Iowa State University. A former NOAA employee said that over 12 offices in the central region have resigned from head meteorologists. And then the harsh weather season begins in the region.

Nearby offices may be able to help understaffed sites track and alert tornadoes, but confusion can lead to delays. “There's a good chance there's a lot of mistakes,” Gallus says.

Such delays were evident last year when a tornado evacuated local forecast offices in Iowa, Galls said. An adjacent station intervened to track the storm. But amidst the chaos, some residents received five minutes of warning that the tornado was heading their path, rather than the minimum 15 minutes that the forecaster aims to provide. In an emergency, these lost times can make a difference whether they can reach safely.

I don't know when a hurricane suddenly becomes stronger

Some employees fired from NOAA were working to improve hurricane forecasts. In particular, we estimate the time when the situation will rapidly intensify. Rapid strengthening can make hurricanes even more dangerous by reducing the time people prepare. However, these events are well known for predicting.

Hurricane modelers at NOAA and other agencies have made great strides in predicting rapid strengthening in recent years, says Brian Tan At Albany University in New York. This is due to improved modeling, data collection and data integration efforts by NOAA researchers. Currently, personnel delivery “destabilizes the entire process of improving hurricane track and intensity prediction,” he says.

“It will be slower to promote the improvements we have been expecting to improve hurricane forecasts over the past 30 years.” Andy Hazeltonworking on improving NOAA's hurricane forecasts before being fired from its position at the agency's environmental modelling centre last week. He says several people have been fired from a group of “Hurricane Hunters” that fly planes into the storm to collect data, including two flight supervisors.

Unreliable weather data

Accurate weather forecasts rely on a continuous stream of information about real-time conditions around the world, collected from marine buoys, satellites, radars and other sensors. Data will then be fed into global weather models that underlie both public and private forecasts. Much of the world's data and modeling is provided by NOAA.

Staff reductions could impact these critical data collection efforts and would reduce the quality of forecasts. In fact, some locals Weather Forecast Center Due to a lack of staff, regular balloon launches have already been suspended.

“All of these observation networks are maintained and run by people.” Emily Becker At the University of Miami in Florida. “And we've already lost a lot of people from those teams. That's going to be an aggregate effect.”

Improvements to future weather forecasts have stopped

At least eight people, a quarter of the staff, were fired from the Environmental Modeling Center. This is responsible for verifying weather data and integrating it into a model that is more or less underlying all predictions, says Hazelton. “What is the temperature this weekend?” and everything is “Are there any tornadoes?”

Personnel delivery at the Environmental Modeling Center will slow research to improve current global weather models, he says. Additionally, 10 people have been fired from the Geophysical Fluid Dynamics Institute, which researchers were building. Next Generation Global weather and climate models.

Such reductions are “very harmful” to efforts to make forecasts more reliable, Gallus says. He says that almost every improvement in forecasts over the past decades depends on improvements in modeling. “If we're losing a ton of researchers working on them, you're basically saying my predictions will never get better.”

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Source: www.newscientist.com

Massive Turnout at Science Congresses Across the Country

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Standing up to a science rally in Washington Square Park, New York City on March 7th

James Dinneen

Thousands of people in American cities protested March 7th against the Trump administration's cuts to scientific funding.

In New York City, over 1,000 people gathered at Washington Square Park and chanted “Fund Science Not War!” People had signs of mourning the cut, including one that said, “Science makes America great.”

The protest was one of at least 30 “stand-up for science” rallies in US cities, and over 150 events were expected worldwide. The researchers also left the institute as part of the protest.

Since President Donald Trump took office on January 20th, the administration has cancelled or frozen billions of dollars in federal funds for scientific and medical research. Much of the reduction focuses on research related to diversity, equity, and inclusion (DEI) and research on climate change and gender. The government has also fired thousands of federal employees at U.S. scientific institutions, including the National Oceanic and Atmospheric Administration, the National Institutes of Health and the Centers for Disease Control and Prevention.

“Science is something that needs to be cherished. I think everyone has to be here. I'm rather working with my cells in my lab, but I think we need to bring awareness to these issues.” Anna Vivineteda neuroscientist at Weill Cornell Medicine who participated in the New York protest. She had signs that read, “So bad, even introverts are here.”

Demonstrators keep signs during stand-up at a science rally at the Lincoln Memorial in Washington, DC on March 7th

Tierney L Cross / Bloomberg via Getty Images

“Science is being attacked, and funds are now being cut for decades in ways that affect the well-being of our country,” says Maia, a researcher at the Columbia University Eco Museum in New York. She says she and her colleagues lost funds for their research.

The largest gathering took place in Washington, D.C., where thousands of people attended. It included scientist Bill Nye. Francis Collins, former director of the National Institutes of Health (NIH). Several members of the Congress. Over 1,500 people attended the New York event. There, notable researchers also spoke, including Lisa Randall, the chief scientist at Meta Ayan Lekun, former NIH director and Nobel laureate, theoretical physicist at Harvard.

Researchers from around the world participated in the New York protests. “America has been a very exceptional thing to science. I really believe that science has made America great. We are very disappointed because everything is destroyed,” says a French cancer biologist.

New Scientist We also spoke with scientists from Argentina, Israel, Canada and Australia at the rally. Some of them worried that they might have to leave the US to continue their work. “I am heartbroken. Vivinezze, from Argentina, said:

Dennis Robbinsa science educator at Hunter College in New York had a sign that read, “Now I am a crazy scientist.” He says he had the same signs in his first “March for Science” protest in 2017.

A crowd of people at the Philadelphia science march! The most popular sign: “I left the lab for this.” The protests have just begun, so please join us! #marchforscience #science #philly

[image or embed]

– Melissa Shusterman (@melshust.bsky.social)) March 7th, 2025, 11:04am

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Source: www.newscientist.com

Chinese researchers have uncovered 125 million Scorpion fossils

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Paleontologists describe new genus and species of extinct scorpions from the early Cretaceous Ixia Formation in China.

Jeholia Longkengi It is China's first Mesozoic scorpion. Image credit: Jie Sun/Xuan et al. , doi: 10.1016/j.scib.2025.01.035.

It has been named Jeholia LongkengiThe new species lived around 125 million years ago (early Cretaceous period).

The fossilized scorpion ruins are Yixian Layer In the village of Heishangou in Chifen City, Nei Mongolia, China.

“Scorpions belong to the Arachnida class within the arthropod and have a relatively small number of fossil records,” said Dr. Qiang Xuan, a researcher at the Institute of Geology and Paleontology and a researcher of excellence for the excellence of life and paleoenvironment at the Chinese Academy of Sciences.

“Early scorpions came from the Midsilurian era, and at least some of them are interpreted as transient forms from sea to land.”

“Even though they are among the early terrestrial arthropods, fossils and living scorpions retain mostly conservative body plans.”

“Mesozoic scorpions are primarily from the Burmese system in the Middle Cretaceous, but compressed scorpion fossils that usually accumulate in the hierarchy are relatively rare, except for late Triassic Cuper sandstone formation in England and late Cretaceous Krato formation in Brazil.”

“Three fossil scorpions, including the Miocene scorpion, have been reported from China Sinoscorpius Shandongensis From Devonian Scorpion, County Chandon Hubeiscorpio gracilitarsis From Hubei Province and Permian Scorpion Eoscorpius sp. From Uda, Nei Mongol. ”

Jeholia Longkengi He was a member of the early Cretaceous terrestrial ecosystem known as Jehoru Biotait is internationally renowned for the discovery of exceptional fossils, including feathered dinosaurs, early birds, diverse mammals, pterosaurs, and several arthropod fossils.

“The Jehol Biota is one of the most important and prolific fossil sites for studying early Cretaceous life,” the paleontologist said.

“No previous fossil scorpions have been recorded despite many fossil species being reported.”

The full length of Jeholia Longkengi It was about 10 cm (4 inches). It is larger than other Mesozoic scorpions and considerably larger than many living scorpions.

“Jeholia Longkengi They may feed primarily a variety of insects, including herbivorous, omnivorous, corrosive, fungal and predatory species that are common in gel biotas, and perhaps spiders, frogs, small salamanders, lizards and mammals,” the researchers said.

“We recommend that potential natural enemies of this Cretaceous scorpion include dinosaurs, birds and mammals, according to previously reported Jehol Biota food web model.”

“However, there is no fossil record for the oral sector, so speculation about their feeding habits is in the preliminary stage.”

“Middle centrality is a metric that quantifies the importance of a node in connecting other nodes in the network,” they added.

“It plays a pivotal role in assessing the extent to which a node acts as a bridge and linking other nodes in the network.”

“In Jehor's Biota Food Network, large scorpions exhibit the highest intermediate centrality of all guilds, highlighting the possibility that fossil scorpions had extensive ecological interactions with other species of early terrestrial ecosystems.”

“Our findings contribute to new insights into the complexity of Yel Biota's food web,” they concluded.

Team's paper Published in the journal Science news.

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Qiang Xuan et al. The first Mesozoic scorpion from China and its ecological meaning. Science newsPublished online on January 24th, 2025. doi: 10.1016/j.scib.2025.01.035

Source: www.sci.news

Webb skillfully depicts the intricate details of Lynds 483

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Two young protostars are responsible for the sparkling ejection of orange, blue, and purple glowing gas and dust in this colorful dark clouds 483 on NASA/ESA/CSA James Webb Space Telescope.

This webb image shows part of Lynds 483. Image credits: NASA/ESA/CSA/STSCI.

Lynds 483 It’s almost arranged 200 persec (652 light years) Separately in the constellations of Serpen.

This object is named after American astronomer Beverly T. Lyns. Published An extensive catalogue of “dark” and “bright” nebulae from the early 1960s.

“For tens of thousands of years, the central Protostar Webb’s astronomer said in a statement.

“When a recent emission hits an older one, the material crouches and spins around based on the density of what is collision.”

“Over time, these emissions and chemical reactions within the surrounding clouds have produced a range of molecules, such as carbon monoxide, methanol, and several other organic compounds.”

“The two protostars in charge of this scene are at the heart of the hourglass shape, on an opaque horizontal disk of cold gas and dust that fit within a single pixel,” they added.

“More farther above and below the flat disc with thinned dust, bright light from the stars passes through the gas and dust, forming a large, translucent orange cone.”

“It’s equally important to notice where the starlight is blocked. Look for a very dark, wide V-shaped shape that is offset by the orange cone 90 degrees.”

“These areas may appear to be free of material, but in reality, they are the most dense surrounding dust, and small starlights will penetrate it.”

This new image was captured by Webb’s Near-Infrared Camera (Nircam) Equipment.

“The L483 is too large to fit in a single Webb snapshot. This image was taken to capture the top and the leak perfectly, so the bottom section is only partially visible,” the astronomer said.

“All symmetry and asymmetry in these clouds could ultimately be explained by updating the model and producing the same effect as researchers reconstruct the history of star emissions.”

“Astronomers also calculate how much material the stars expelled, which molecules were created when the materials were destroyed together, and how dense each region is.”

“Millions of years from now, when the stars form, they may each be about our solar mass.”

“They’ve cleared that area. They wipe out these translucent discharges.”

“All that remains is a small disc of gas and dust that the planet could eventually form.”

Source: www.sci.news

Possible Hierarchical Triple System in Kuiper Belt Object Altjira

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Altozillaalso known as the 2001 UQ18, is located outside the solar system, 6 billion km (3.7 billion miles), or 44 times the distance between the Earth and the Sun.

This artist’s concept illustrates one of the possible scenarios for Kuiper Belt’s Altjira system. Image credits: NASA/ESA/Joseph Olmsted, Stsci.

“The Hubble images show two Kuiper Belt Objects (KBOs) about 7,600 km (4,700 miles) apart,” says Meianelsen, an astronomer at Brigham Young University and a colleague.

“However, Altjira’s repeated observations of the unique cooperative movement show that the inner object is indeed two bodies very close to each other.

“In small, far-flung objects, we need to discover that the separation between the two inner members of the system is part of the pixels of Hubble’s camera, using non-imaging methods.”

Astronomers gathered data from the Hubble and WM Keck Observatory for 17 years of observation baselines and looked at the trajectory of objects outside the Altjira system.

“Over time, the direction of the trajectory of the outer object changes, indicating that the inner object is either very elongated or in fact one of two separate objects,” says Dr. Dalin Lagoziczin of Brigham Young University.

“The triple system was perfect when putting Hubble data into different modeling scenarios,” Nelsen added.

“Other possibilities are that the inner object is a contact binary, so close that two separate bodies touch each other, or in fact, oddly flat as pancakes.”

Of the 40 identified binary objects in the Kuiper belt, of another system, Lempoit is known to be triple.

“Now, Altjira and Lempo are likely triples, so they are more likely to be looking for a population of three-body systems formed by the same situation, rather than a strange ball,” the astronomer said.

“But building that evidence requires time and repeated observation.”

The only Kuiper Belt objects explored in detail are PL Pun and the small object Arrocos that NASA’s New Horizons mission visited in 2015 and 2019, respectively.

New Horizons showed that Arrokoth is a contact binary. This means that in the case of KBO, two objects that have moved close to each other are currently touched or merged, often in the form of peanuts.

“Altozilla is the “cous” of Arokos, a member of the Kuiper Belt Objects of the same group,” Dr. Lagozin said.

“The Altjira is 10 times the Arocos, which is 200 km (124 miles) wide.”

“There is no mission that Altozilla plans to fly to get Arrocos level details, but there are other upcoming opportunities to further study the intriguing system,” Nelsen said.

“Altozilla is entering the season of the eclipse, where the outer body passes in front of the central body.”

“This will continue for the next 10 years and give scientists a great opportunity to learn more about it.”

Team’s paper It was published in Journal of Planetary Science.

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Maia A. Nelsen et al. 2025. Beyond the point square. IV. The Transneptinian object Altjira is a hierarchical triple, possibly discovered by non-kipler movements. planet. SCI. j 6, 53; doi:10.3847/psj/ad864d

Source: www.sci.news

The survival strategies of ancient amphibians during the Permian mass extinction elucidated by new study

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A primitive amphibian called the Temnospondyls survived the aftermath of the end-of-permian mass extinction that occurred about 252 million years ago. University of Bristol.

Reconstruction of the Temnospondyl species Mastodon Saurus. Image credit: Mark P. Whiton, https://www.markwitton.co.uk.

The Permian mass extinction is the most severe biological crisis in the last 540 million years, eliminating more than 90% of marine species and 75% of terrestrial species.

Dr. Aamir Mehmoud, a researcher at the University of Bristol, said:

“These were predatory animals that ate fish and other prey, but were primarily water-related, just like modern amphibians such as frogs and salamanders.”

“We know that the weather was hot, especially after the extinction event. Why were these water-loving animals so successful?”

The early Triassic period was an era of repeated volcanic activity that led to global warming, motivation, reduced atmospheric oxygen, acid rain, and long stages of widespread wildfires, creating such hostile conditions that the tropics lacked animal life.

This “tropical dead zone” dramatically affected the distribution of both marine and terrestrial organisms.

Dr. Suresh Singh of the University of Bristol said:

“We measured the size and characteristics of the skull and teeth that tell us about their function.”

“To our surprise, we discovered that they weren’t much different due to the crisis,” said Dr. Armin Elssler of the University of Bristol.

“The Temnospondils exhibited the same range of body sizes as the Permian, some of them were small, insect-eating, and others were bigger.”

“These large forms included animals in long snoo trapping fish and generalist feeders covered in vast nudes.”

“However, what’s unusual is that their body size and functional diversity expanded about five million years after the crisis and then returned.”

There is evidence that due to severe global warming in the first 5 million years of the Triassic, life on land and on seas has left the tropical region to avoid fever.

“Our work shows that Temnospondil was able to cross the tropical dead zone unexpectedly,” said Professor Mike Benton of the University of Bristol.

“The fossils are known from South Africa and Australia in the south, North America, Europe, and Siberia in the north.”

“Temnospondyls must have been able to cross the tropical zones during the cool episode.”

“Their explosion of success in the early Triassic period was not tracked,” Dr. Amir said.

“They dealt with hot conditions, perhaps because they could eat most prey animals and perhaps because they had a low food need by hiding in sparse waters.”

“However, when dinosaurs and mammalian ancestors began to diversify in the mid-Triassic period, Temnospondil began to undergo a long decline.”

a paper The findings will be published in the journal Royal Society Open Science.

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Aamir Mehmoud et al. 2025. Permian – the ecology and geography of the recovery of Temnospondil after the mass extinction of the Triassic period. Royal Society Open Sciencein press; doi: 10.1098/rsos.241200

Source: www.sci.news

CEO of Crypto Giant Tether denies suspicion while collaborating with the Trump Administration in Cryptocurrency dealings

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Last week, Paolo Ardoino, CEO of Tether, a cryptocurrency company, traveled through Switzerland contemplating regulatory changes. Tether, once at odds with the establishment, now operates smoothly.

Since Tether is the world’s most traded cryptocurrency, its journey has been unconventional, facing regulatory hurdles and investigations. Despite challenges from regulators, Tether continues to maintain its value pegged to the dollar.

Aldoino, the CEO of Tether, believes that his leadership needs to adapt to global dynamics to sustain the company’s operations.

Tether, holding significant amounts of US government debt, plays a crucial role in the cryptocurrency market, supporting users in unstable economies and providing a secure asset for traders.

Despite past struggles with regulators, Tether now embraces transparency and aims to collaborate with law enforcement agencies to improve its standing in the industry.

Regarding criticisms and regulatory challenges, Aldoino admits past naivety and stresses the importance of communication to build trust and transparency.

The relationship between Tether and Cantor Fitzgerald, a custodian, plays a vital role in the company’s operations, despite challenges posed by regulatory scrutiny.

Lutnick, confirmed as the Secretary of Commerce under the Trump administration, holds a significant impact on Tether’s future collaborations with the US government.

Issues around auditing and compliance continue to surface within the cryptocurrency industry, with Tether facing questions about the stability of its stablecoin and regulatory compliance.

Aldoino warns of potential threats from regulatory challenges in the US and Europe, emphasizing the importance of regulatory clarity moving forward.

In conclusion, Aldoino sees the evolving landscape of cryptocurrency regulation as a critical factor in shaping Tether’s future, pushing for a more supportive regulatory environment starting in September.

Source: www.theguardian.com

Rocket explosion by SpaceX causes flight delays at Florida airport due to debris concerns

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A huge explosion of a SpaceX rocket above South Florida caused major disruptions for an air traveler due to unexpected delays.

The failure of the SpaceX mission led to the FAA grounding air traffic around Miami, Fort Lauderdale, West Palm Beach, and Orlando, citing concerns about “space-fired debris.”

“After years of traveling, this is a first,” expressed a Facebook user who goes by the name of Rappeck. Executive Peck was flying to South America but had to divert to Miami.

The flight pilot informed passengers that a space rocket had exploded during flight, causing debris to fall along their path. They reassured the passengers that they were safe but needed to circle back to Miami.

Peck shared, “We eventually had to return to Miami. It’s unbelievable. We’ve faced delays due to weather, mechanical issues, and even unruly passengers, but never because of a rocket explosion.”

Jesse Winans, a traveler en route from Costa Rica to Charlotte, found himself in an unexpected layover in Fort Lauderdale along with other passengers.

“They are trying to manage the situation with customers, but I anticipate a long process to reach our destination,” complained the frustrated traveler to NBC South Florida.

Debris from a SpaceX rocket above the Bahamas on Thursday.
John Ward

SpaceX previously experienced a similar accident in January and has pledged to learn from this latest incident.

The company stated Thursday night in a released statement, “We will analyze data from today’s flight tests to better understand the root causes. Success stems from our learnings, and today’s flights provide more insight to enhance Starship’s reliability.”

Elon Musk summed it up more succinctly with his statement: “Rocket science is hard.”


David K. Lee

Senior Breaking News Reporter

Brian Hamacher of NBC South Florida and Sarah Mahidri contributed.

Source: www.nbcnews.com