Astronomy Picture of the Day

50th Anniversary of Sputnik: Traveling Companion

Starburst Cluster in NGC 3603

X-ray Stars of Orion

Two Million Galaxies

Galaxy NGC 474: Cosmic Blender

Aurora, Stars, Meteor, Lake, Alaska

The Strange Trailing Side of Saturn's Iapetus

Bright Planets, Crescent Moon

The Whale and The Hockey Stick

Enceladus Ice Geysers

NGC 3132: The Eight Burst Nebula

Jupiter's Clouds from New Horizons