Venus' Clouds Contain Aerosols That Are 60% Water, According To Reanalyzed Pioneer Data

By Andy Tomaswick - October 01, 2025 04:26 PM UTC | Planetary Science
Reanalyzing old data with our modern understanding seems to be in vogue lately. However, the implications of that reanalysis for some topics are more impactful than others. One of the most hotly debated topics of late in the astrobiological community has been whether or not life can exist on Venus - specifically in its cloud layers, some of which have some of the most Earth-like conditions anywhere in the solar system, at least in terms of pressure and temperature. A new paper from a team of American researchers have just added fuel to that debate by reanalyzing data from the Pioneer mission to Venus NASA launched in the 70s - and finding that the Venus’ clouds are primarily made out of water.
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Spiral Arm Motion Solves Exoplanet Formation Mystery

By Andy Tomaswick - October 01, 2025 03:18 PM UTC | Exoplanets
There are plenty of exoplanets scattered throughout the galaxy, so it would stand to reason there are also plenty of stars that are in the process of forming new exoplanets. Tracking down stars that are in different stages of that process can shed light on the exoplanet formation process, and potentially even on how planets in our own solar system developed. But determining what star systems are going through that process, let alone where they are in the process itself, can be tricky. A new paper in Nature Astronomy from Tomohiro Yoshida and his co-authors at the National Astronomical Observatory of Japan and several other Japanese and American research institutions, seems to have found one that finally answers a mystery that has stood in planetary formation theory for decades - how do gas giant exoplanets form so far away from their stars?
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Dedicated Amateur Discovers Supernova in Remote Galaxy

By David Dickinson - October 01, 2025 01:24 PM UTC | Extragalactic
Astronomy is increasingly becoming an online affair. Recent discoveries of interstellar Comet 3I/ATLAS and R2 SWAN highlighted this fact, when both were first discussed on message boards and verified via remote telescopes before confirmation. Another recent find also shows what’s possible, as devoted amateur astronomer Filipp Romanov accomplished an amazing feat, and discovered a supernova in a remote galaxy.
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Setting Bounds On SETI

By Andy Tomaswick - September 30, 2025 10:25 PM UTC | Astrobiology
The Search for Extraterrestrial Intelligence (SETI) has a data scale problem. There are just too many places to look for an interstellar signal, and even if you’re looking in the right place you could be looking at the wrong frequency or at the wrong time. Several strategies have come up to deal narrow the search given this overabundance of data, and a new paper from Naoki Seto of the Kyoto University falls nicely into that category - by using the Brightest Of All TIme (BOAT) Gamma Ray Burst, with some help from our own galaxy.
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Moon Missions Could Finally Reveal the Secrets of Dark Matter

By Mark Thompson - September 30, 2025 08:59 PM UTC | Cosmology
Dark matter, as its name suggests, is really dark, so dark in fact that it doesn’t interact in any way with light or any other part of the electromagnetic spectrum. Even thought it makes up about 80 percent of all matter in the universe and plays a vital role in galaxy formation we still don’t really know what it is. Of all the methods and techniques used to try and unravel this mystery, never would I think I would be writing about the Moon and how it could help us. However, a new piece of research suggests that future missions to the far side of the Moon could help us determine the mass of individual dark matter particles.
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Astronomers Detect the First "Heartbeat" of a Newborn Star

By Mark Thompson - September 30, 2025 08:44 PM UTC | Stars
Gamma ray bursts are among the most luminous explosions in the universe, briefly outshining entire galaxies in a violent flash of energy. For decades, scientists have debated what powers these incredibly powerful detonations and, to date, the leading candidates have been black holes or highly magnetised neutron stars called magnetars. Distinguishing between the two has proven frustratingly difficult though but a new study has just provided the clearest evidence yet that magnetars can indeed power some of these extreme events, and they did it by detecting something unexpected, the "heartbeat" of a newborn star.
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Galaxies with High Radio Emissions Could be Home to Many Advanced Civilizations

By Matthew Williams - September 30, 2025 06:37 PM UTC
arXiv:2508.00249v1 Announce Type: new Abstract: Any population of artificial radio broadcasts in a galaxy contributes to its integrated radio luminosity. If this radio emission is bright enough, inhabited galaxies themselves form a cosmic population of artificial radio galaxies. We can detect these broadcasts individually or set constraints from their collective emission. Using the formalism in Paper I and II, I set bounds on the artificial radio galaxy population using both of these methodol...
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Warped Planetary Discs Challenge Our Understanding of Planet Formation

By Mark Thompson - September 30, 2025 03:33 PM UTC | Planetary Science
I remember the first time I pointed my 25cm telescope at the Ring Nebula in Lyra. Even through modest amateur optics, that surreal view of the ring hanging in space was breathtaking, the glowing embers of a dying star. Planetary nebulae like the Ring have long been favourites among amateur astronomers, not just for their visual beauty but because they represent the end of a star's life. However, new research is revealing equally fascinating structures at the opposite end of stellar evolution, the discs where planets are born, and they're not quite what we expected.
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An Einstein Cross Reveals the Universe's Hidden Matter

By Mark Thompson - September 30, 2025 12:20 PM UTC | Physics
When astronomers pointed their telescopes at a distant galaxy called HerS-3, they discovered something really quite remarkable. The galaxy, located 11.6 billion light years away, appeared not once but five times in their observations, arranged in a nearly perfect cross pattern. This rare phenomenon, known as an Einstein Cross, has revealed exciting evidence for a massive halo of dark matter lurking in the space between us and that distant galaxy.
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Simulating HWO’s Ability to Characterize Earth-Sized Exoplanets

By Laurence Tognetti, MSc - September 30, 2025 03:01 AM UTC | Exoplanets
How will NASA’s upcoming Habitable Worlds Observatory (HWO) mission differentiate Earth-sized exoplanets from other exoplanets, specifically Earth-sized exoplanets within the habitable zone, also called exoEarths? This is what a recent study accepted for publication in The Astronomical Journal hopes to address as an international team of researchers investigated the potential future capabilities of HWO and what shortcomings need to be addressed for it to conduct groundbreaking science, specifically with discovering exoEarths.
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Surveying Io’s Surface with the UNAGI Lander

By Laurence Tognetti, MSc - September 30, 2025 12:35 AM UTC | Missions
What type of lander could touch down on Jupiter’s volcanic moon, Io? This is what a recent paper presented at the AIAA 2025 Regional Student Conference hopes to address as a team of student engineers from Spartan Space Systems at San Jose State University investigated a novel concept for landing a spacecraft in Io, which is the most volcanically active planetary body in the solar system. This study has the potential to help scientists and engineers develop new mission concepts from all levels of academia and industry.
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Measuring Earth's Wobble Without Looking at the Stars

By Mark Thompson - September 29, 2025 09:38 PM UTC | Planetary Science
Most people are familiar with the fact that the Earth spins on its axis once every day. The spin however, isn’t as steady as you might think. Like a spinning top slowing down, Earth’s axis wobbles, scribing out a circle on the night sky that currently points very close to the Pole Star in the northern hemisphere. This wobble is driven by the shape of the Earth and for decades, this wobble has been tracked by a network of radio telescopes. A team of astronomers have measured this wobble to a level of accuracy that has never been achieved before.
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The Asteroid Belt's Slow Disappearing Act

By Mark Thompson - September 29, 2025 01:45 PM UTC | Planetary Science
Asteroids have held a special place in my heart ever since I saw one silently drift between Earth and the Moon a good few years ago. Never studied them properly so more of a passing interest but any time a story relating to asteroids pops up it peaks my interest. For the most part, the origin of an asteroid is the asteroid belt, a ring of rocky debris orbiting between Mars and Jupiter. A new study has calculated precisely how fast this reservoir of space rocks is being depleted from collisions and gravitational interactions that evict asteroids and just where that material ends up.
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The Black Hole That Broke the Rules

By Mark Thompson - September 29, 2025 12:06 PM UTC | Black Holes
Black holes, regions of space where gravity is so intense that even light cannot escape, have captivated astronomers for decades. Some are the result of stellar death while others sit at the hearts of quasars, galaxies that shine so brightly they can be spotted from billions of light years away. Understanding how these supermassive black holes grow so massive, so quickly, has been one of the great puzzles of modern astrophysics, however, a new observation using cutting edge technology has just thrown a spanner in the works.
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A Black Hole Merger's "Kick" Was Measured For The First Time

By Andy Tomaswick - September 29, 2025 11:39 AM UTC | Black Holes
Black hole mergers are some of the most violent events in the universe. Just how violent is becoming more clear in part due to a new paper published in Nature Astronomy. For the first time, it tracks the “recoil” that the newly formed black hole gets from asymmetric gravitational waves that are released during the merger. Turns out they are strong enough to “kick” the new, supermassive combined black hole into motion at a speed of thousands of kilometers a second.
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Scientists Discover First Evidence of Lava Tubes on Venus

By Mark Thompson - September 29, 2025 08:55 AM UTC | Planetary Science
Venus has often been called Earth’s sister planet however there are stark differences between them. Among the similarities are a number of geological features and lava tubes are just one example. These natural tunnels form when the surface of a lava flow cools and solidifies while hot lava continues to flow beneath. They are common in Iceland and Hawaii and now, for the first time they have been found on Venus too.
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James Webb Spots Intense Auroras on Nearby Rogue Planet

By Laurence Tognetti, MSc - September 27, 2025 06:56 AM UTC | Exoplanets
What can auroras on a rogue planet teach astronomers about planetary formation and evolution? This is what a recent study published in Astronomy & Astrophysics hopes to address as an international team of researchers investigated the atmospheric composition of a nearby rogue planet, including its atmospheric temperature and auroras. This study has the potential to help astronomers better understand rogue planets, along with additional planetary atmospheric formation and evolutionary traits.
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Constraining Proxima b’s Atmosphere, Orbit, and Albedo with RISTRETTO

By Laurence Tognetti, MSc - September 27, 2025 03:00 AM UTC | Observing
What new methods can be employed to help astronomers distinguish the light from an exoplanet and its host star so the former’s atmosphere can be better explored? This is what a recent study accepted to Astronomy & Astrophysics hopes to address as an international team of researchers investigated how a novel and proposed telescopic instrument that could be capable of characterizing exoplanet atmospheres in new and exciting ways. This study has the potential to help scientists develop novel tools for examining exoplanets and whether they could possess life as we know it, or even as we don’t know it.
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Primordial Black Holes Could Be Triggering Type Ia Supernovae

By Evan Gough - September 26, 2025 09:35 PM UTC | Black Holes
A new article published in The Astrophysical Journal explores a new theory of how Type Ia supernovae, the powerful stellar explosions that astronomers use to measure distances across the universe, might be triggered. Traditionally, these supernovae occur when a white dwarf star explodes after interacting with a companion star. But this explanation has limitations, leaving open questions about how these events line up with the consistent patterns astronomers actually observe.
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Mars's Frozen Vortex Creates Surprise Ozone Shield

By Mark Thompson - September 26, 2025 01:25 PM UTC
Mars holds a special place in my heart being the second planet I saw through a telescope. It’s probably fair to say that it’s held a special place for many as we continue to explore the fascinating world that is the red planet. Scientists studying Mars have recently uncovered a seasonal phenomenon that could change our understanding of the potential for it to support life. Their discovery, a swirling polar vortex that forms of the Martian north pole every winter.
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A Herd of Tumbleweed Rovers Could Explore Mars

By Andy Tomaswick - September 26, 2025 11:23 AM UTC | Planetary Science
Tumbleweeds offer iconic visual depictions of desolate landscapes. Though typically associated with the American West, the most common type of tumbleweed actually originated in Europe, and is known scientifically as salsola targus, or more commonly as Russian thistle. So its only fitting that a team led by European scientists has some up with an idea based on the tumbleweed’s unique properties that could one day have groups of them exploring Mars.
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Radio Astronomers Fight Back Against Satellite Interference

By Mark Thompson - September 26, 2025 09:23 AM UTC | Observing
Visual observations have, over the years had to battle light pollution, weather, aircraft and even satellite constellations. Radio observations have until recently, been reasonably well protected however in their attempt to preserve the “quiet skies” a team of radio astronomers have secured a significant victory. For the first time, they've joined forces with the International Special Committee on Radio Interference, a committee that sets global standards for preventing electronic interference.
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Next Generation Chip Could Find Help Find Alien Life

By Mark Thompson - September 26, 2025 08:50 AM UTC | Planetary Science
Are we alone in the universe? It’s a question that has plagued us since the ancient Greeks posed it for the first time in the 5th century and since then we have tried all manner of ways to reach out to our alien cousins….if they exist. We have fixed golden plaques to space probes, beamed messages out from radio telescopes and in 2012 even sent 10,000 ‘X’ (formerly twitter) messages out to three star systems with the hashtag #ChasingUFOs! A new tool has been developed, rather mundane compared to these other examples, which is no bigger than a soft drink can and could detect signs of life on alien worlds with unprecedented precision.
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It's Not Rocket Science... It's Materials Science

By Mark Thompson - September 25, 2025 03:34 PM UTC | Space Exploration
Imagine an engine with no moving parts that runs on continuous explosions. I’m actually sure I one saw a hilarious video of such a device some years ago but alas, am unable to find it and share. Still, the image of the poor occupants being constantly pressed into their seats and accelerated in a series of explosions is likely to be quite a long way from the reality of the new Rotation Detonation Engine. The team of researchers Lehigh University are behind the idea and have just received $2 million to solve the biggest challenge standing in its way, finding materials to build the thing out of that are tough enough to survive the punishment.
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Gravitional Wave Detectors Are Affected By Daylight Savings Time

By Andy Tomaswick - September 25, 2025 11:43 AM UTC | Observing
Interference from human activity has always been a sticking point in astronomical observations. Radio astronomy is notoriously sensitive to unintentional interference - hence why there are “radio silent” zones near telescopes where cell phones are banned. But gravitational wave astronomy is affected to an even worse degree than radio astronomy, according to a new paper by Reed Essick of the University of Toronto, and it’s not clear there’s much we can do about it.
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Warm Exo-Titans as a Test of Planetary Atmospheric Diversity

By Laurence Tognetti, MSc - September 25, 2025 02:36 AM UTC | Exoplanets
What can exoplanets orbiting M-dwarf stars teach scientists about planetary formation and evolution? This is what a recent study submitted to the American Astronomical Society journals hopes to address as a team of researchers investigated the possibility of exo-Titans, exoplanets with atmospheres comprised of nitrogen and methane like Saturn’s moon Titan, orbiting M-dwarf stars, which are smaller and cooler than our Sun. this study has the potential to help scientists better understand the formation and evolution of exoplanets orbiting M-dwarf stars and whether they could possess life as we know it.
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Can IMAP Solve the Mystery of the Bubble in Space!

By Mark Thompson - September 24, 2025 10:00 PM UTC | Planetary Science
When astronauts head out into space they are protected from deadly radiation by their spacecraft and on space walks, their space suit. Back on Earth, we too are protected but by an invisible bubble that’s known as the heliosphere. The heliosphere has been subjected to numerous studies over the years but NASA’s newest mission is set to give us the most detailed of it map ever created.
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This Rapidly-Growing Black Hole Could Explain The JWST's Puzzling Findings

By Evan Gough - September 24, 2025 06:42 PM UTC | Black Holes
NASA's Chandra X-ray space telescope has found a black hole that's growing at an extremely rapid pace. The telescope is seeing the black hole, which has about one billion solar masses, when the Universe was less than one billion years old. Studying its rapid accretion could explain how some black holes become so massive so soon after the Big Bang.
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Defining Life With Constants From Physics

By Andy Tomaswick - September 24, 2025 03:09 PM UTC | Astrobiology
What is the meaning of life? Even the best of us couldn’t hope to answer that question in a universe today article. But there are those who would try to “constrain” it, at least in terms of physics. A new paper from Pankaj Mehta of Boston University of Jané Kondev of Brandeis that was recently pre-published on arXiv looks at how the fundamental constants of physics might be applied to life as we know it - and even life as we don’t know it yet. Their idea doesn't necessarily give the answer to the ultimate question, but it does tie two seemingly disparate fields nicely together.
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Finding Exomoons Using Their Host Planet's Wobble

By Andy Tomaswick - September 24, 2025 11:28 AM UTC | Exoplanets
Exoplanets aren’t the only objects floating around other stars - they likely have comets and asteroids as well. Even some of the exoplanets themselves will have “exomoons”, at least according to our current understanding of the physics of planetary formation. However, we have yet to find any of these other objects conclusively, though there has been some hint at the presence of exomoons in the last ten years. A new paper from astronomers at the European Southern Observatory (ESO), recently pre-published on arXiv, suggests a way in which we might be able to finally detect the presence of an exomoon - using a technique that is also commonly used to find exoplanets themselves.
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The Search for Australia's Hidden Impact Crater

By Mark Thompson - September 24, 2025 09:04 AM UTC | Planetary Science
A team of scientists in south Australia have discovered tiny pieces of glass that tell the story of a catastrophic event that happened 11 million years ago, an asteroid impact so massive it should have left a crater the size of a major city, yet mysteriously, no one has found it. This discovery represents only the sixth known tektite field ever identified on Earth. The glassy fragments, scattered across the landscape are forcing scientists to reconsider what they know about ancient asteroid impacts and the geological features they leave behind.
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Spaceflight as a Model for Studying Age-Related Muscle Decline

By Laurence Tognetti, MSc - September 24, 2025 06:26 AM UTC | Space Exploration
How does spaceflight influence sarcopenia, which is a common age-related muscle decline, specifically for elder adults? This is what a recent study published in Stem Cell Reports hopes to address as a team of researchers investigated how microgravity influences muscle cell function. This study has the potential to help scientists, mission planners, astronauts, and the public better understand the long-term health impacts of microgravity on muscle decline and the steps that can be taken to mitigate it.
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A Mission To Observe Earth's "Halo" Is On Its Way

By Andy Tomaswick - September 23, 2025 11:56 PM UTC
Some NASA missions are designed for very specific tasks, but all of them help feed into our understanding of our universe, and in some cases our pale blue dot, work. A new mission to study one of the more esoteric parts of the atmosphere is scheduled to launch today, and over the next 2-3 years will monitor the outer reaches of our planet’s atmosphere.
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The Galaxy's Influence on Earth can be Found in Crystals

By Matthew Williams - September 20, 2025 09:00 PM UTC
Earth’s History Written in the Stars: Zircon Crystals Reveal Galactic Influence kerryhensley45577 Tue, 09/16/2025 - 10:27 Earth’s History Written in the Stars: Zircon Crystals Reveal Galactic Influence https://www.curtin.edu.au/news/media-release/earths-history-written-in-the-stars-zircon-crystals-reveal-galactic-influence/
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