Interstellar comet 3I/ATLAS is now barreling away from the sun, never to return to the solar system. There's one more chance ...

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 ...

Comet C/2024 E1, better known as Wierzchos, is skimming past the Sun in a tight, blazing turn that will fling it back toward ...

Comet 3I/ATLAS, only the third interstellar object ever observed, is making its final pass through our skies, offering a rare ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. You’ve likely already heard about two comets visible from ...

Interstellar comet 3I/ATLAS will soon reach its closest distance to Earth, so this may be our last, best chance to see this rare object before it heads back out into the universe, never to return. One ...

C/2024 E1 (Wierzchos) brightened significantly ahead of its close approach to the sun.

Comet Lemmon, a comet discovered in January, may be visible with the unaided eye after sunset this week. Credit: Creators.com illustration It’s been a few years since we’ve seen a decently bright ...

A comet hurtling through the solar system from interstellar space is exactly what it appears to be, NASA officials said Wednesday, moving to quash a wave of online speculation. At a news conference, ...

I just received this image of Comet 240P/NEAT from longtime Astronomy contributor Chris Schur, and I had to share it. This ...

A newly discovered comet is about to make its closest pass to Earth on Tuesday night. It should be visible over the Central Coast before it disappears — and won’t be seen again for more than a ...