NASA imaged Comet C/2025 R2 (SWAN) every four minutes for nearly 40 days, marking the longest any comet has been tracked with such frequency.

NASA’s PUNCH mission observed comet Lemmon (C/2025 A6) during its solar pass, capturing images of the comet’s tail and movement from October to November 2025, revealing solar wind effects.

Forget the once-in-a-lifetime flybys that fade in days; the cosmos has just offered up a truly unprecedented spectacle. In an ...

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 ...