Initial analysis suggested the nucleus was approximately 13.7 kilometers wide (roughly city-sized); however, researchers ...

The comet runs the risk of being destroyed by its extremely close approach to the Sun in April 2026.

Evidence from medieval chronicles suggests that the periodic nature of Halley’s Comet was recognized centuries earlier than previously believed.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A deep image of interstellar Comet 3I/ATLAS captured by the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. On Tuesday, Oct. 14, 2025, Comet Lemmon (C/2025 A6) will ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Comet C/2025 K1 (ATLAS) caught fragmenting by the 1.82 m Copernicus telescope at the Asiago ...

C/2025 K1 (ATLAS) has broken into three distinct pieces following its closest approach to the sun on Oct. 8. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...