New footage shows comet C/2025 K1 Atlas splitting into three pieces after coming close to the sun, giving astronomers fresh ...

Comet Lemmon, or C/2025 A6, was discovered by the Arizona-based Mount Lemmon Survey, which observed it as an almost ...

The interstellar comet has reappeared after months hidden behind the sun, offering astronomers fresh clues about how comets ...

Astronomers are tracking interstellar comet 3I/ATLAS after JWST and NASA missions detected an extreme CO₂ outburst that ...

Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete more of their gas and dust. Consequently, they don’t typically emit as much ...

The rare comet 3I/Atlas has been spotted again after several weeks, this time missing its glowing tail — here’s what ...

Astronomers detect doubly deuterated heavy water in a planetary formation disk for the first time ever in a system named V883 ...

Arctic sea ice has declined by more than 42% since 1979, when regular satellite monitoring began. As the ice grows thinner ...