Astronomy Picture of the Day

The Variable Nebula NGC 2261

Nacreous Clouds over Sweden

Comet G3 ATLAS Disintegrates

Wolf-Rayet Star 124: Stellar Wind Machine

Anticrepuscular Rays: A Rainbow Fan over Spain

Comet G3 ATLAS Setting over a Chilean Hill [video]

IC 2574: Coddington's Nebula

LEDA 1313424: The Bullseye Galaxy

A Conjunction of Crescents

Milky Way over the Australian Pinnacles

Auroral Hummingbird over Norway

The Spider and the Fly