Astronomy Picture of the Day

The Changing Surface of Fading Betelgeuse

Orion over the Central Bohemian Highlands

UGC 12591: The Fastest Rotating Galaxy Known

Trifecta at Twilight

LDN 1622: Dark Nebula in Orion

Central Centaurus A

Illustris Simulation of the Universe [video]

Jupiter's Magnetic Field from Juno [video]

NGST-10b: Discovery of a Doomed Planet

Two Hemisphere Night Sky

South Celestial Rocket Launch

Julius Caesar and Leap Days