Using data from NASA's Chandra X-ray Observatory, astronomers have discovered an unprecedented bonanza of black holes in the Andromeda Galaxy, one of the nearest galaxies to the Milky Way.
via NASA Breaking News
http://www.nasa.gov/home/hqnews/2013/jun/HQ_13-181_Chandra_Black_Hole_Bonanza.html
via NASA Breaking News
http://www.nasa.gov/home/hqnews/2013/jun/HQ_13-181_Chandra_Black_Hole_Bonanza.html