An astronomer has snapped comet 3I/ATLAS using the Lowell Observatory's powerful Discovery Telescope, as well as his own ...

On hearing the words "city killer" and "asteroid" in the same sentence, you'd be forgiven for thinking something bad is about to happen. But not to fear. Although an asteroid with the potential to ...

Contextualizing speed and distance helps set expectations. Around perihelion, 3I/Atlas is moving at roughly 68 km per second. Its closest approach to Earth is about 1.8 AU, near December 19, which is ...

Wondering if it's a full moon tonight or if the planet Venus and Regulus star will be visible again today? Here's what to know about this weekend's celestial events. Tonight's waning crescent moon ...

Scientists are watching a newly discovered object in space, and most of them agree it's a comet, but not all of them. A Harvard scientist, who believes he's seen proof of alien life before, suspects ...

Jupiter will reach its highest point in the sky around dawn, when, from mid-northern latitudes, it will appear about 20 ...