Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what you’ll need to catch a glimpse.

Comet 3I/ATLAS, the third interstellar object ever detected, will swing closest to Earth overnight from Thursday to Friday (Dec. 18 to 19). Here’s how to see it.

On Friday, an object that formed outside of our galaxy passes close enough to Earth that we have a chance to see it in the night sky. It's taken the astronomy community by storm. What is Comet ...

A shocking image shows how the night sky is being crowded by satellites. Astrophotographers observing Comet C/2025 A6 (Lemmon) have captured striking evidence of how rapidly Earth’s near-space ...

The month brings a strong lineup of celestial sights, including a supermoon, meteor activity, and several close moon-planet ...

Ursid meteor shower peaks Dec. 21–22 as Earth passes through debris from Comet 8P/Tuttle. Here’s when and where to watch the ...

In late April 2026, a long-period comet will swing through the inner solar system. It will likely be visible with binoculars, ...