Cygnus constellation Crescent nebula & tulip nebula ( sh2 101 ) Sadr gamma cygnus

Unusual Signal Suggests Neutron Star Destroyed by Black Hole

What created this unusual explosion?

Supernova Cannon Expels Pulsar J0002

What could shoot out a neutron star like a cannon ball?

Astronomy Picture of the Day: IC 59 and IC 63 in Cassiopeia

These bright rims and flowing shapes look ghostly on a cosmic scale.

Astronomy Picture of the Day: Cherenkov Telescope at Sunset

On October 10, a new telescope reflected the light of the setting Sun.

Astronomy Picture of the Day: Neutrino Associated with Distant Blazar Jet

With equipment frozen deep into ice beneath Earth's South Pole, humanity appears to have discovered a neutrino from far across the universe.

Astronomy Picture of the Day: Centaurus A

Only 11 million light-years away, Centaurus A is the closest active galaxy to planet Earth.

Astronomy Picture of the Day: Sigma Octantis and Friends

South pole star Sigma Octantis (of the constellation Octans) is on the left of this starry expanse spanning over 40 degrees across far southern skies.

Astronomy Picture of the Day: At Last GLAST

Rising through a billowing cloud of smoke, a long time ago from a planet very very close by, this Delta II rocket left Cape Canaveral Air Force Station's launch pad 17-B at 12:05 pm EDT on June 11, 2008.

Astronomy Picture of the Day: Fermi Science Playoffs

NASA's Fermi Gamma-ray Space Telescope was launched into orbit on June 11th, 2008.