The Shenzhou-20 mission's three-person crew has returned home after more than a week of delays caused by damage to their spacecraft, allegedly caused by an impact with a tiny piece of space debris.
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Astronomers have discovered that the famous Pleiades star cluster, otherwise known as the "Seven Sisters" is actually the bright core of a sprawling family of stars spread across nearly 2,000 light years. By combining stellar spin measurements with precise motion tracking, researchers identified over 3,000 related stars and revealed the Pleiades is twenty times larger than previously thought.
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Astronomers have discovered that our Solar System is moving through the universe more than three times faster than cosmological models predict, a finding that challenges fundamental assumptions about how the universe works. By analysing the distribution of distant radio galaxies using advanced statistical methods, the team detected motion so unexpectedly rapid it earned the rare five sigma statistical significance that scientists consider definitive evidence.
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Carl Sagan, along with co-author Edwin Salpeter, famously published a paper in the 70s about the possibility of finding life in the cloud of Jupiter. They specifically described “sinkers, floaters, and hunters” that could live floating and moving in the atmosphere of our solar system’s largest planet. He also famously talked about how clouds on another of our solar system’s planets - Venus - obfuscated what was on the surface, leading to wild speculation about a lush, Jurassic Park-like world full of life, just obscured by clouds. Venus turned out to be the exact opposite of that, but both of those papers show the impact clouds can have on the Earth for life. A new paper by authors as the Carl Sagan Institute, led by Ligia Coelho of Cornell, argues that we should look at clouds as potential habitats for life - we just have to know how to look for it.
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The next few months are likely to bring a dramatic transition for NASA, under the leadership of a new administrator who has new ideas about changing the course of the space agency.
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The JWST surprised when it detected very early galaxies that were extremely luminous. This suggested that they were more massive than researchers thought they could be. Not enough time had passed for them to grow so large. New research has an explanation.
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Astronomers have used machine learning to discover seven new quasar lens systems, arrangements where a quasar's host galaxy bends light from a more distant galaxy behind it. The find more than doubles the number of known candidates and demonstrates how artificial intelligence can unearth astronomical needles in haystacks containing hundreds of thousands of objects. A team of researchers are training neural networks on synthetic data to revolutionising the search for these rare natural lenses.
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Scientists have discovered a 900 metre wide impact crater in southern China, the largest modern meteorite scar on Earth. The Jinlin crater triples the size of the previous record holder and suggests that recent extraterrestrial impacts have been far more dramatic than anyone realised.
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A new study of supernovae suggests that the standard model of cosmology isn't quite right. If the data holds up, what other cosmological models might work better?
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A new discovery adds to the growing menagerie of exoplanets. These days, word of a new exoplanet discovery raises nary an eyebrow. To date, the current number of known exoplanets beyond our solar system stands at confirmed 6,148 worlds and counting. But a recent study out of the University of Liège in Belgium titled Two Warm Earth-sized Planets and an Earth-sized Candidate in the Binary System TOI-2267 shows just how strange these worlds can be.
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Getting time on the James Webb Space Telescope (JWST) is the dream of many astronomers. The most powerful space telescope currently in our arsenal, the JWST has been in operation for almost four years at this point, after a long and tumultuous development time. Now, going into its fifth year of operation, the Space Telescope Science Institute (STScI), the organization that operates the science and mission operations centers for the JWST has received its highest number ever of submission for observational programs. Now a team of volunteer judges and the institute's scientists just have to pick which ones will actually get telescope time.
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A research team has conducted the first systematic search for optical counterparts to a neutrino "multiplet," a rare event in which multiple high-energy neutrinos are detected from the same direction within a short period. The event was observed by the IceCube Neutrino Observatory, a massive detector buried deep within the Antarctic ice.
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Is Saturn's moon Enceladus habitable? There's ample evidence that the moon holds a warm ocean underneath its frozen surface, and that the building blocks of life are present in that ocean. But for life to arise and persist, the ocean needs to sustain itself for a long time, and new research shows that's exactly what's happening.
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New evidence suggests the standard model of cosmology is wrong, but the results could resolve the long-standing Hubble Tension problem in modern cosmology.
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Iron rusts. On Earth, this common chemical reaction often signals the presence of something far more interesting than just corroding metal for example, living microorganisms that make their living by manipulating iron atoms. Now researchers argue these microbial rust makers could provide some of the most promising biosignatures for detecting life on Mars and the icy moons of the outer Solar System.
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Astronomers have deployed a survey with the most memorable and tasty acronym in astrophysics - SPAM, The Search for Protoplanets with Aperture Masking - to catch planets in the act of being born. Using Keck Observatory's most powerful instruments, researchers have just captured the closest ever view of a protoplanetary disk 400 light years away, revealing a telltale gap and clumpy structures that hint at a world coalescing from interstellar dust.
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A new study argues that the Universe is decelerating, based on a correlation between the brightness of Type-Ia supernovae and the age of their host galaxies.
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Tracking time is one of those things that seems easy, until you really start to get into the details of what time actually is. We define a second as 9,192,631,770 oscillations of a cesium atom. However, according to Einstein’s theory of general relativity, mass slows down these oscillations, making time appear to move more slowly for objects in large gravity wells. This distinction becomes critical as we start considering how to keep track of time between two separate gravity wells of varying strengths, such as on the Earth and the Moon. A new paper by Pascale Defraigne at the Royal Observatory of Belgium and her co-authors discusses some potential frameworks for solving that problem and settles on using the new Lunar Coordinate Time (TCL) suggested by the International Astronomical Union (IAU).
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ESA’s Euclid space telescope is revealing the patterns of galaxy evolution of millions of galaxies across cosmic time. Scientists from the Max Planck Institute for Extraterrestrial Physics (MPE) are using this data to trace how galaxies grow, merge, and transform.
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After spending four years converting a massive cargo ferry into a rocket catching ship, Blue Origin scrapped the entire vessel and started from scratch. The story of Jacklyn, named after Jeff Bezos's mother, reveals how even a company founded by one of the world's richest people had to learn hard lessons about what actually works when trying to catch 57 metre rocket boosters descending from space at hypersonic speeds. The barge that ultimately took its name represents a dramatic shift in strategy, from elegant complexity to purpose built simplicity.
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Billions of years ago, a rogue planet eight times more massive than Jupiter tore through our Solar System, passing closer to the Sun than Mars orbits today. That single violent encounter may explain why our giant planets don't orbit in perfect circles like formation theories predict and new simulations suggest there was roughly a one in 9,000 chance it happened at all. The discovery reveals that near misses with interstellar wanderers might be more important in shaping planetary systems than anyone realised.
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When a chunk of SpaceX rocket debris crashed into a Polish warehouse this year, it exposed a troubling reality, that the international laws governing space accidents were written for a world where only governments launched rockets. Now, as private companies deploy thousands of satellites and debris rains down with increasing frequency, victims have no direct legal recourse and must rely on their governments to pursue claims on their behalf, that’s if those governments choose to act at all. A new analysis reveals how a Cold War era treaty struggles to protect ordinary people in the age of commercial spaceflight, and why some nations are now taking matters into their own hands.
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Astronauts lose significant amounts of muscle mass during any prolonged stay in space. Despite spending 2-3 hours a day exercising in an attempt to keep the atrophy at bay, many still struggle with health problems caused by low gravity. A new paper and some further work done by Emanuele Pulvirenti of the University of Bristol’s Soft Robotics Lab and his colleagues, describe a new type of fabric-based exoskeleton that could potentially solve at least some of the musculoskeletal problems astronauts suffer from without dramatically affecting their movement.
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In 2023, gravitational wave detectors caught two black holes colliding 7 billion light years away, both spinning at nearly the speed of light and both existing in a mass range where black holes simply cannot form. The mystery baffled astronomers until researchers discovered what everyone else had missed, magnetic fields in the chaotic aftermath of a supernova can eject half a star's mass into space, creating black holes that defy the rules of physics.
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When astronomers detected potential biosignatures in the atmosphere of exoplanet K2-18 b, it raised a critical question, ‘could this world's atmosphere even survive its host star's radiation?’ A new study using the Very Large Array searched for radio emissions from the K2-18 system and found something surprising, it was absolutely silent. That absence of radio signals reveals K2-18 is an unusually quiet star, suggesting the planet's atmosphere faces minimal erosion from stellar activity.
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NASA's plans for a permanent lunar base face the threat of up to 23,000 micrometeoroid impacts per year travelling at speeds of 70 kilometres per second. A new study quantifies this relentless bombardment for the first time, revealing that even microscopic particles carry enough energy to puncture equipment and even threaten astronaut safety. The research shows impact rates vary dramatically by location with the lunar south pole, NASA's chosen site for the first Artemis base, fortunately experiencing the lowest bombardment.
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Google's Project Suncatcher is fascinating solution to AI's massive energy demands…. building data centres in space powered directly by the solar power. The company's new research explores the possibility of constellations of satellites equipped with processors flying in tight formation just hundreds of meters apart, connected by terabit per second laser links to distribute information. Early testing shows their chips are surprisingly radiation resistant, while falling launch costs could make space based computing economically viable by the mid 2030s. With a prototype mission planned for 2027, this could fundamentally change where our most powerful computing infrastructure is located.
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Weather forecasting is notoriously wonky - climate modeling even more so. But their slowing increasing ability to predict what the natural world will throw at us humans is largely thanks to two things - better models and increased computing power. Now, a new paper from researchers led by Daniel Klocke of the Max Planck Institute in Germany, and available in pre-print form on arXiv, describes what some in the climate modeling community have described as the “holy grail” of their field - an almost kilometer-scale resolution model that combines weather forecasting with climate modeling.
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Work continues on designs for robots that can help assist the first human explorers on the Moon in over half a century. One of the most important aspects of that future trip will be utilizing the resources available on the Moon’s surface, known as in-situ resource utilization (ISRU). This would give the explorers access to materials like water, structural metals, and propellant, but only if they can recover it from the rock and regolith that make up the Moon’s surface. A new paper from researchers mainly affiliated with Tohoku University describes the design and testing of a type of robot excavator that could one day assist lunar explorers in unlocking the world’s potential.
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Aboard China's space station, astronauts have begun using a new hot air oven delivered by Shenzhou XXI to prepare freshly baked dishes, including chicken wings and steaks, as shown in a recent video from orbit.
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As stars age, they expand. That’s bad news for planets orbiting close to their stars, according to a new study published in the Monthly Notices of the Royal Astronomical Society this month. The study suggests that planets closest to their stars, especially those that orbit their stars in just 12 days or less, are at a higher risk of being sent to their doom by their aging suns.
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Insects have been travelling to space since 1947, but now they might become dinner for astronauts on missions to the Moon and Mars. A new European Space Agency study explores whether crickets and mealworms could provide sustainable protein for future space explorers, with research showing many species handle microgravity surprisingly well, even completing entire life cycles in orbit. Is it possible that these tiny creatures could become essential for humanity's expansion beyond Earth.
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Two black hole collisions detected just a month apart last autumn are challenging our understanding of how they form. One merger features a black hole spinning backwards against its orbit while the other involves one of the fastest rotating black holes ever detected. These unusual properties suggest both are “second generation" black holes, products of earlier collisions formed in violent stellar environments. The precision measurements have also tested Einstein's general relativity changing not only our understanding of black holes but also our understanding of the cosmos.
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When massive stars explode as supernovae, the powerful blast can send planets off into space where they drift as rogue or free-floating planets. But what happens to their moons? Can their natural satellites stay bound to these planets, and could tidal heating be a viable source of energy to fuel life on these moons?
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Models help scientists understand everything from the particles that make up the universe to massive superstructures of galaxies at the beginning of time. But sometimes they model more mundane, though perhaps even more complex, features - including the course of human civilization. A new paper by Thomas Leppard of the International Archaeological Research Institute and his co-authors, all of whom are also archeologists, propose applying a model of how humans expanded to the different islands across the Pacific Ocean during their early migration to what glean insights into how humanity should manage our colonization of space.
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Space dust provides more than just awe-inspiring pictures like the Pillars of Creation. It can provide the necessary materials to build everything from planets to asteroids. But what it actually looks like, especially in terms of its “porosity” (i.e. how many holes it has) has been an area of debate for astrochemists for decades. A new paper from Alexey Potapov of Friedrich Schiller University Jena and his co-authors suggest that the dust that makes up so much of the universe might be “spongier” than originally thought.
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Back in 2009, astronomers using the Fermi Gamma-ray Space Telescope noticed that there was a lot more gamma-ray light coming from the center of the Milky Way than might otherwise be expected given the objects there. Since then, two theories have appeared to explain this Galactic Center Excess (GCE) as it’s become known. One theory posits that the extra gamma rays are created by thousands of unseen milli-second pulsars (MSPs) in the Galactic center, while the other suggests that dark matter annihilating itself could also be the source. A new paper from Moortis Muru and hisco-authors at the Leibniz Institute for Astrophysics Potsdam (AIP) hasn’t necessarily solved the conundrum, but does level the playing field between the two theories again.
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An international team of researchers, led by the Leibniz Institute for Astrophysics Potsdam (AIP), has shed light on a decades-long debate about why galaxies rotate faster than expected, and whether this behaviour is caused by unseen dark matter or a breakdown of gravity on cosmic scales.
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The ESA's ExoMars Trace Gas Orbiter (TGO) recently captured images of streaks formed from a dust avalanche on the slopes of Apollinaris Mons the night before Christmas in 2023. A new study reveals that these types streaks are largely the result of seasonal factors, rather than meteoroid impacts.
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It’s almost become expected that many space telescopes and probes can have “extended missions”. Both Voyagers are still sending data back 40+ years after their 5-year primary mission ended. But figuring out what to do with those spacecraft after their primary mission takes some negotiation. One such craft that will reach its end-of-mission in 2030 is Euclid, which is currently on a mission to map the “dark universe” of dark energy and dark matter. According to a new paper from Luigi “Rolly” Bedin of the Astronomical Institute of Padova, which is available in pre-print form on arXiv, for its second act we could turn Euclid into the most powerful astrometric telescope ever made.
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Using its high-resolution camera, China's Tianwen-1 orbiter has successfully observed the interstellar object 3I/ATLAS at a distance of about 30 million kilometers, according to the China National Space Administration (CNSA).
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We're only starting to awaken to the passage of interstellar objects through our inner Solar System. So far we know of three, but there are bound to be many more. Do they pose an impact threat to Earth?
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The planets in our Solar System host hundreds of moons, so it seems likely that planets in other solar systems do, too. New research examines the likelihood of rocky planets around M dwarfs having exomoons, and it doesn't look good. They don't last long enough for them to give life a helping hand like Earth's moon has.
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Conditions on Venus’ surface have largely remained a mystery for decades. Carl Sagan famously pointed out that people were quick to jump to conclusions, such as that there are dinosaurs living there, from scant little evidence collected from the planet. But just because we have little actual data doesn’t mean we can’t draw conclusions, and better yet models, from the data we do have. A new paper from Maxence Lefèvre of the Sorbonne and his colleagues takes what little data has been collected from Venus’ surface and uses it to valid a model of what the wind and dust conditions down there would be like - all for the sake of making the work of the next round of Venusian explorer easier.
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New study reveals, for the first time, a tidal disruption event (TDE), where a black hole tears apart a star, occurring outside the center of a galaxy that produced exceptionally strong and rapidly evolving radio signals. This rare discovery shows that supermassive black holes can exist and remain active far from galactic cores, challenging current understanding of where such black holes reside and how they behave. The event’s delayed and powerful radio outbursts also suggest previously unknown processes in how black holes eject material over time.
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There are no mini-Neptunes in our Solar System, yet they seem to be one of the most common types of exoplanets out there. Previous research shows that these planets are magma oceans. But new research based on JWST data shows that many of them may actually have solid surfaces.
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The Euclid Space Telescope found some stars hiding in thick gas and dust in the Orion Molecular Cloud Complex. They're inside a so-called dark cloud named LDN 1641.
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A spooky bat has been spotted flying over the European Southern Observatory’s (ESO’s) Paranal site in Chile, right in time for Halloween. Thanks to its wide field of view, the VLT Survey Telescope (VST) was able to capture this large cloud of cosmic gas and dust, whose mesmerising appearance resembles the silhouette of a bat.
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Trapped in a gravitational push and pull between Jupiter and other Jovian moons, Io is constantly being stretched and compressed. Heat generated by these contortions has melted pockets of the moon's interior so much that Io is our solar system's most volcanically active body. New research shows how its atmosphere is shaped both by volcanoes and by Jupiter's overpowering magnetosphere.
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When neutron stars collide, neutrinos can play a significant role in the outcome. Even more so when you take flavor mixing into account.
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