Two meteorites found in the Sahara in 2023 might be from Mercury, a study suggests, but doubts remain due to how little is ...

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.

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

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

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

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

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

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 ...

Space company Northrop Grumman announced the completion of another test, the third, of the second stage rocket motor of the ...

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...