A pair of once-in-a-lifetime comets will rocket through our skies this October, and it's a rare treat because they won't be ...

Comet Lemmon is now visible with comet SWAN after sunset while also remaining visible before dawn for Northern Hemisphere ...

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Comet C/2025 R2 (SWAN) was discovered on Sept. 10 by Ukrainian amateur astronomer Vladimir Bezugly. It has brightened ...

A rare green Halloween comet will be visible in the night sky over the next few weeks before it vanishes for 1,300 years.

Comets Lemmon and SWAN are making their closest approach to the Earth tonight, Oct. 21. Here's how you might see them with ...

COMET Lemmon will blaze across the night sky over Scotland tonight. And it’ll be your last chance to see it for 1,300 years.

Comets Lemmon and SWAN are soaring past Earth in a rare cosmic treat. Here's best viewing times, tips and more in ...

Seeing comets is great, but it’s unlikely to be as rare as the one that won’t be seen again for another 1,300 years. Get your ...

A newly discovered comet is about to make its closest pass to Earth on Tuesday night. It should be visible over the Bay Area ...