Researchers suspect that two meteorites found in the Sahara Desert in 2023 may originally have come from Mercury, which would ...

Have you ever wondered what our solar system looked like 3.8 billion years ago? Were the planets we know today anything like their current forms, or were they completely different? In this video, we ...

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

Volcanic planets with static crusts, called Ignan Earths, can maintain liquid oceans and temperate climates favorable to life.

Centimeter-sized pebbles have been detected in protoplanetary discs using e‑MERLIN, filling in a critical phase of planet ...

A key method of forming planets finally has observational evidence, thanks to a network of radio telescopes in the U.K. that ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ...

A minuscule meteorite seems to be rewriting the history of our solar system. The 50-gram Northwest Africa 12264 has brought a new understanding of when and how rocky worlds came together. Inner ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between five and 18, plus hundreds of potentially undiscovered ones, depending on whom ...

Discover 3I/ATLAS, an interstellar comet with a reddish hue, rich in water ice, and possibly predating the solar system.