Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet Lemmon (C/2025 A6) as imaged using a Seestar S30 smart ...

Comets have had a busy year. As different sky surveys kept scanning the heavens, a surprising mix of new comets turned up, some bright, some barely there, and a few carrying unusual stories of their ...

Get ready for a once-in-a-lifetime spectacle on Monday, Oct. 20 Getty The Orionid meteor shower will peak overnight Oct. 20 through Oct. 21, while Comet Lemmon and SWAN make their closest approach to ...

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 ...

In October 2025, Comet Lemmon and Comet ATLAS may be visible as they streak across the night sky, providing a rare cosmic treat for skywatchers tonight, Wednesday, Oct. 22, amid the Orionid meteor ...

The comet is only the third interstellar object recorded in the solar system. Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed ...

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, ...

No two comets are exactly alike. Of course, they can appear similar. Two decently bright comets that share a superficial resemblance are gracing our skies right now, in fact: C/2025 A6 (Lemmon) and ...

Earthlings will soon have their chance to see NASA's clearest images yet of the interstellar comet 3I/ATLAS, and you can watch it right here. The space agency recently announced a live news ...

No two comets are exactly alike. While SWAN’s orbit is very well aligned with the plane of the planets as they orbit the sun, Lemmon’s orbit is highly inclined, tipped by more than 140 degrees, ...

NASA’s Goddard Space Flight Center shared the images of comet 3I/ATLAS. It's possibly as big as Manhattan, likely older than our own solar system and it's traveling through space at speeds of up to ...