Astronomer Gianluca Masi captured spectacular footage of a glowing meteor trail wrapping around the colossal tail of Comet ...

The chemical signatures we're observing may reflect both the comet's ancient origins and its long journey through ...

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

At the end of October Europa Clipper will fly in line with 3I/ATLAS’ ion tail — but will any of the charged particles reach ...

Interstellar object 3I/ATLAS is fueling debate after its unusual behaviour prompted the International Asteroid Warning ...

A massive coronal mass ejection (CME) is hurtling from the Sun's far side, setting a collision course for the unusual ...

Comet SWAN has an estimated brightness of magnitude +6.1 (a measure of visual brightness), which, in a dark, moonless sky, ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail ...

Is 3I/ATLAS really an alien mothership? NASA and the scientific community weigh in on the controversial topic.

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

Brooks, which visits the Earth roughly every 71 years, was spotted releasing intriguing radio signals last year.

Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete ...