Asteroids, Comets and Meteors News

April 30, 2025

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New Research Shatters Long-Held Beliefs About Asteroid Vesta

Apr. 28, 2025 — For decades, scientists believed Vesta, one of the largest objects in our solar system's asteroid belt, wasn't just an asteroid and eventually concluded it was more like a planet with a crust, mantle and core. Now, new research flips this notion on ...

Billion-Year-Old Impact in Scotland Sparks Questions About Life on Land

Apr. 28, 2025 — New research has revealed that a massive meteorite struck northwestern Scotland about 200 million years later than previously thought, in a discovery that not only rewrites Scotland's geological history but alters our understanding of the evolution ...

Volcanic History and Clues to Ancient Life on Mars

Apr. 18, 2025 — Researchers use the sophisticated technology on NASA's Perseverance rover to analyze volcanic rocks in Mars' Jezero Crater. Their findings show that some of the same volcanic processes that led to life on Earth happened long ago on Mars, a stunning ...

Evidence Blasted Into Space: Mystery Why Some Meteorites Look Less Shocked Solved

Apr. 24, 2025 — Carbon-containing meteorites look like they had less severe impacts than those without carbon because the evidence was blasted into space by gases produced during the impact. The discovery not only ...

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Astronomers Find Earth-Like Exoplanets Common Across the Cosmos

Apr. 25, 2025 — Astronomers have discovered that super-Earth exoplanets are more common across the universe than previously thought. While it can be relatively easy to locate worlds that orbit close to their star, ...

Scientists Use James Webb Space Telescope to Better Understand Solar System's Origins

Apr. 24, 2025 — Using the James Webb Space Telescope (JWST), scientists analyzed far-away bodies -- known as Trans-Neptunian Objects (TNOs) -- and found varying ...

Astronomers Discover a Planet That's Rapidly Disintegrating, Producing a Comet-Like Tail

Apr. 22, 2025 — A planet 140 light-years from Earth is rapidly coming apart due to its close proximity to its star. The roasting planet is effectively evaporating ...

Scientists Probe the Mystery of Titan's Missing Deltas

Apr. 18, 2025 — New research finds that despite large rivers and seas of liquid methane, Saturn's moon Titan seems mostly devoid of river deltas, raising new questions about the surface dynamics on this alien ...

Curiosity Rover Finds Large Carbon Deposits on Mars

Apr. 17, 2025 — Research from NASA's Curiosity rover has found evidence of a carbon cycle on ancient ...

Ever Wonder Why Some Meteor Showers Are So Unpredictable?

Apr. 16, 2025 — Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? Researchers show that this is not due to the random pull of the planets, but rather ...

Crystal Clues on Mars Point to Watery and Possibly Life-Supporting Past

Apr. 16, 2025 — A new study analyzing data from NASA's Perseverance rover has uncovered compelling evidence of multiple mineral-forming events just beneath the Martian surface -- findings that bring scientists one ...

Scientists Find Evidence That Overturns Theories of the Origin of Water on Earth

Apr. 16, 2025 — Researchers have helped overturn the popular theory that water on Earth originated from asteroids bombarding its surface; Scientists have analyzed a ...

Molten Martian Core Could Explain Red Planet's Magnetic Quirks

Apr. 15, 2025 — First ever supercomputer simulations of Mars with a fully molten core could explain the Red Planet's unusual magnetic field. Billions of years ago, Mars had an active magnetic field. Mysteriously, ...

Mysterious Atmosphere of 'Rosetta Stone' Exoplanet

Apr. 15, 2025 — A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, hot atmosphere. TOI-270 d ...

Scientists May Have Solved a Puzzling Space Rock Mystery

Apr. 14, 2025 — Researchers may have answered one of space science's long-running questions -- and it could change our understanding of how life began. Carbon-rich asteroids are abundant in space yet make up ...

Saturn's Moon Titan Could Harbor Life, but Only a Tiny Amount, Study Finds

Apr. 7, 2025 — Despite its uniquely rich inventory of organic molecules, Saturn's largest moon, Titan, may be able to support only a minuscule amount of biomass, if life exists on the moon, according to a ...

Solar Cells Made of Moon Dust Could Power Future Space Exploration

Apr. 3, 2025 — The same dirt that clings to astronauts' boots may one day keep their lights on. Researchers created solar cells made out of simulated Moon dust. The cells convert sunlight into energy ...

Existing International Law Can Help Secure Peace and Security in Outer Space

Apr. 2, 2025 — World leaders should look to existing international law on the use of force to address the threat of space becoming ever more militarized, a new study ...

Asteroid Impact Threat Estimates Improved for the Earth and the Moon

Apr. 2, 2025 — An international team is currently closely tracking the near-Earth asteroid 2024 YR4. The impact probability estimates for the year 2032 has been reduced from a peak of 3 percent to below 0.001 ...

Miso Made in Space Tastes Nuttier

Apr. 2, 2025 — Miso is a traditional Japanese condiment made by fermenting cooked soybeans and salt. Researchers successfully made miso on the International Space Station (ISS). They found that the miso smelled and ...

Organic Molecules of Unprecedented Size Discovered on Mars

Mar. 24, 2025 — The longest organic molecules identified to date on Mars have recently been detected. These long carbon chains, containing up to 12 consecutive carbon atoms, could exhibit features similar to the ...

Meteorites: A Geologic Map of the Asteroid Belt

Mar. 18, 2025 — Where do meteorites of different type come from? In a review paper, astronomers trace the impact orbit of observed meteorite falls to several previously unidentified source regions in the asteroid ...

Age of Upcoming Asteroid Flyby Target

Mar. 17, 2025 — New modeling indicates the main belt asteroid (52246) Donaldjohanson may have formed about 150 million years ago when a larger parent asteroid broke apart; its orbit and spin properties have ...

TOI-1453: Sub-Neptune in System of Two Exoplanets

Mar. 14, 2025 — Astronomers have discovered two exoplanets around TOI-1453, a star about 250 light years away. These two exoplanets, a super-Earth and a sub-Neptune, are common in the galaxy, yet are absent from our ...

Violent Supernovae 'Triggered at Least Two Earth Extinctions'

Mar. 13, 2025 — At least two mass extinction events in Earth's history were likely caused by the 'devastating' effects of nearby supernova explosions, a new study suggests. Researchers say these ...

Signs of Alien Life May Be Hiding in These Gases

Mar. 12, 2025 — Scientists identify a new way to detect life in outer space with currently existing telescopes. The method hinges on worlds that look nothing like Earth, and gases rarely considered in the search for ...

Super-Earths and Mini-Neptunes: More Earth-Like Planets May Exist

Mar. 11, 2025 — A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...

How's the Weather on Mars?

Mar. 6, 2025 — A new study revealed that atmospheric gravity waves play a crucial role in driving latitudinal air currents on Mars, particularly at high altitudes. The findings, based on long-term atmospheric data, ...

The Chances of Anything Coming from Mars

Mar. 5, 2025 — Within the next decade, space agencies plan to bring samples of rock from Mars to Earth for study. Of concern is the possibility these samples contain life, which could have unforeseen consequences. ...

Small and Large Planets Have Significantly Different Upbringings

Mar. 5, 2025 — Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several ...

Astronomer Finds Gas Giant Exoplanets Formed Earlier Than Previously Thought

Mar. 5, 2025 — A fresh look at past data reveals that exoplanets with masses similar to Jupiter formed much sooner than previously thought, according to new ...

NASA's Hubble Finds Kuiper Belt Duo May Be Trio

Mar. 4, 2025 — The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, and has most recently been popularized in the novel and television show ...

Designing a Satellite to Hunt Small Space Debris

Feb. 27, 2025 — Scientists are designing a satellite and instruments capable of detecting space debris as small as 1 centimeter, less than one-half inch. Debris that small, which cannot currently be detected from ...

The International Space Station Is Overly Sterile; Making It 'Dirtier' Could Improve Astronaut Health

Feb. 27, 2025 — Astronauts often experience immune dysfunction, skin rashes, and other inflammatory conditions while traveling in space. A new study suggests that these issues could be due to the excessively sterile ...