A star thousands of times larger than the Sun just underwent a dramatic transformation that's a prelude to catastrophe.

Interstellar Comet 3I/ATLAS nears a Jupiter flyby in March 2026. Track the gravity nudge, outgassing wildcard, and what ...

The Rubin Observatory’s real-time alert system can detect millions of cosmic events per night, from asteroids to supernovae, ...

Everyone will see the crescent moon glide gracefully past both Pleiades, while those in the Northern Hemisphere will get ...

New in the Lou: 3 songs from St. Louis artists to check out Get up-to-the-minute news sent straight to your device. Sorry, an ...