8/27/2008STScI-2008-321.A Clash of Clusters Provides New Clue to Dark Matter
A powerful collision of galaxy clusters has been captured by NASA’s Hubble Space Telescope and Chandra X-ray Observatory. The observations of the cluster... (More)
4/10/2008STScI-2008-172.Hubble Pinpoints Record-Breaking Explosion
Peering across 7.5 billion light-years and halfway back to the Big Bang, NASA's Hubble Space Telescope has photographed the fading optical counterpart of a powerful... (More)
1/10/2008STScI-2008-046.Hubble Finds Double Einstein Ring
The Hubble Space Telescope has revealed a never-before-seen optical alignment in space: a pair of glowing rings, one nestled inside the other like a bull's-eye pattern. The double-ring... (More)
2007
10/4/2007STScI-2007-387.Astronomers Use Hubble and Keck to Identify Dwarf Galaxy
A team of astronomers at the University of California at Santa Barbara report that they have resolved a dwarf galaxy 6 billion light-years away. Weighing... (More)
5/15/2007STScI-2007-178.Hubble Finds Ring of Dark Matter
Astronomers using NASA's Hubble Space Telescope have discovered a ghostly ring of dark matter that formed long ago during a titanic collision between two massive galaxy clusters. (More)