When astronomers turned their instruments toward 3I/ATLAS, an interstellar comet passing through our solar system, what they ...

New analysis of ALMA observations of interstellar comet 3I/ATLAS show its water carries a chemical signature pointing to a colder, more distant origin than any comet ever measured.

A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds — and it may have ...

3I/ATLAS is not just another comet drifting by. This object likely formed around another star, may be older than our Sun, and ...

ALMA reveals unusual “alien” water in interstellar comet 3I/ATLAS, showing it formed in an extremely cold, distant star ...

This artist’s impression compares the semi-heavy water content of the interstellar comet 3I/ATLAS (left) and Earth (right).

Less than a year ago, astronomers discovered a comet soaring through our sky that was not from our solar system. Although we still don't know where this interstellar object called 3I/ATLAS came from, ...

When interstellar comet 3I/ATLAS swept past the Sun in late 2025, something about it had quietly shifted. Researchers trained a powerful telescope on its glowing gas cloud weeks later and found a ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically different from anything known to have ever formed around our sun Astronomers ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between. By James S.A. Corey James S.A. Corey is the pen name of Daniel Abraham and Ty Franck, the ...

In a stroke of luck, astronomers saw the comet C/2025 K1 (ATLAS) break into four or five fragments in November after it passed close to the sun. By Robin George Andrews Astronomers on Wednesday ...

Ellie joined UNILAD in 2024, specialising in SEO and trending content. She moved from Reach PLC where she worked as a senior journalist at the UK’s largest regional news title, the Manchester Evening ...