3/2/2012STScI-2012-101.Dark Matter Core Defies Explanation in Hubble Image
Astronomers observed what appeared to be a clump of dark matter left behind during a bizarre wreck between massive clusters of galaxies. The dark matter collected... (More)
6/22/2011STScI-2011-173.Pandora's Cluster – Clash of the Titans
A team of scientists studying the galaxy cluster Abell 2744, nicknamed Pandora's Cluster, have pieced together the cluster's complex and violent history using telescopes... (More)
8/19/2010STScI-2010-265.First Use of Cosmic Lens to Probe Dark Energy
An international team of astronomers using NASA's Hubble Space Telescope has devised a new method for measuring perhaps the greatest puzzle of our universe... (More)
8/27/2008STScI-2008-327.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)
5/15/2007STScI-2007-179.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)