A comet discovered earlier this year is on a collision course with the sun, and if it holds together through the encounter, ...

Interstellar Comet 3I/ATLAS, the third known object to visit our solar system from another star, carries a chemical signature ...

The Hubble Space Telescope saw Comet 41P stop spinning completely, and then restart, but in the opposite direction.

Comet MAPS (C/2026 A1), a "Kreutz sungrazer,” will skim the sun in early April and may put on a brief, dramatic show low in ...

A newly discovered comet is rapidly brightening and could become visible from Earth — if it survives an extreme close ...

Add Yahoo as a preferred source to see more of our stories on Google. Comet C/2025 A6 (Lemmon), with a glowing green coma and visible tail, is one of three comets visible in the October night sky.

A visitor from another star system is creating excitement in the astronomy community. The comet 3I/ATLAS which was first spotted in July 2025 contains chemical clues that scientists can use to ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

New data indicates Comet 3I/ATLAS is second only to C/2016 R2 in terms of methanol levels ever recorded in a comet within our solar system.

Comet C/2025 A6 (Lemmon), captured from the Dark Sky Alqueva Observatory in Portugal on October 2, 2025, glows green as it nears its closest approach to Earth. Here’s how to see this rare green comet ...

The two green comets continue to shine brightly in twilight each evening for lucky skywatchers with binoculars in the Northern Hemisphere. For observers on Friday, Oct. 24, the bright Comet Lemmon ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that won’t return until the next millennium. Comet C/2025 A6 (Lemmon), captured ...