Asteroids, Comets and Meteors News

March 29, 2025

Top Headlines

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 fatty acids produced on Earth by biological activity. ...

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 super-powerful blasts -- caused by the death of a massive star -- may ...

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 undergone significant evolution since. When NASA's Lucy ...

Latest Headlines

updated 5:32pm EDT

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 ...

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 '3 ...

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 ...

ESO Observations Help Almost Fully Rule out 2024 YR4 Asteroid Impact

Feb. 25, 2025 — New observations of 2024 YR4 conducted with the European Southern Observatory's Very Large Telescope (ESO's VLT) and facilities around the world have all but ruled out an impact of the ...

The Galactic Journey of Our Solar System

Feb. 25, 2025 — Astronomers have discovered that the Solar System traversed the Orion star-forming complex, a component of the Radcliffe Wave galactic structure, approximately 14 million years ago. This journey ...

Gulf of Mars: Rover Finds Evidence of 'Vacation-Style' Beaches on Mars

Feb. 24, 2025 — Mars may have once been home to sun-soaked, sandy beaches with gentle, lapping waves according to a new ...

Does Planetary Evolution Favor Human-Like Life? Study Ups Odds We're Not Alone

Feb. 14, 2025 — Humanity may not be extraordinary but rather the natural evolutionary outcome for our planet and likely others, according to a new model for how intelligent life developed on ...

Deposits Found on a Nearby Asteroid Point to Salty Water in the Outer Solar System

Feb. 14, 2025 — Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision. But their proximity also offers ample opportunities to learn more about the ...

New Research Sheds Light on Using Multiple CubeSats for in-Space Servicing and Repair Missions

Feb. 14, 2025 — As more satellites, telescopes, and other spacecraft are built to be repairable, it will take reliable trajectories for service spacecraft to reach them safely. Researchers are developing a ...

Euclid Discovers a Stunning Einstein Ring

Feb. 10, 2025 — Euclid, the European Space Agency's dark Universe detective, has made an astonishing discovery -- right in our cosmic ...

Multinational Research Project Shows How Life on Earth Can Be Measured from Space

Feb. 6, 2025 — Measurements and data collected from space can be used to better understand life on Earth. An ambitious, multinational research project has demonstrated that Earth's biodiversity can be ...

Alien Ocean Could Hide Signs of Life from Spacecraft

Feb. 6, 2025 — A new study focusing on Enceladus, a moon of Saturn, shows that the physics of alien oceans could prevent evidence of deep-sea life from reaching places where we can detect ...

Largest Radio Jet Ever Seen in the Early Universe

Feb. 6, 2025 — Astronomers have characterized the largest-ever early-Universe radio jet. Historically, such large radio jets have remained elusive in the distant Universe. With these observations, astronomers have ...

Meteorite Discovery Challenges Long-Held Theories on Earth's Missing Elements

Feb. 5, 2025 — Earliest inner solar system planetesimals shaped the inventory of moderately volatile elements in terrestrial ...

Scientists Simulate Asteroid Collision Effects on Climate and Plants

Feb. 5, 2025 — A new climate modeling study presents a new scenario of how climate and life on our planet would change in response to a potential future strike of a medium-sized (~500 m) ...

One in Four Chance Per Year That Rocket Junk Will Enter Busy Airspace

Feb. 5, 2025 — There's a 26 per cent annual chance that space rocket junk will re-enter the atmosphere and pass through a busy flight area, according to a recent study. While the chance of debris hitting an ...

AI-Driven Performance Prediction Model to Advance Space Electric Propulsion Technology?

Feb. 4, 2025 — A research team presents an AI assessor for Hall-effect ion thrusters, the engines of satellites and space ...

Earth Detecting Earth

Feb. 3, 2025 — A research team set out to answer a simple question: If an extraterrestrial civilization existed with technology similar to ours, would they be able to detect Earth and evidence of humanity? If so, ...

Life-Bearing Water Arrived on Earth Later Rather Than Sooner

Feb. 3, 2025 — Scientist have concluded water did not arrive as early during Earth's formation as previously thought, an insight that bears directly on the question of when life originated on the planet. The ...

Life's Building Blocks in Asteroid Bennu Samples

Jan. 29, 2025 — Scientists detected all five nucleobases -- building blocks of DNA and RNA -- in samples returned from asteroid Bennu by NASA's OSIRIS-REx ...

Exploring Mysteries of Asteroid Bennu

Jan. 29, 2025 — Scientists found that asteroid Bennu contained a set of salty mineral deposits that formed in an exact sequence when a brine evaporated, leaving clues about the type of water that flowed billions of ...

Follow the Water: Searching for a Lunar Oasis

Jan. 28, 2025 — As humankind imagines living off-planet -- on the moon, Mars and beyond -- the question of how to sustain life revolves around the physical necessities of oxygen, food and water. We know there is ...

Dwarf Planet Ceres: Building Blocks of Life Delivered from Space

Jan. 27, 2025 — The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few ...