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View Full Version : Finding the Mama Bear of Black Holes



Fraser
2009-Nov-10, 07:10 PM
While astronomers have studied both big and little black holes for decades, evidence for those middle-sized black holes has been much harder to come by. Now, astronomers at NASA's Goddard Space Flight Center in Greenbelt, Md., find that an X-ray source in galaxy NGC 5408 represents one of the best cases for a middleweight black [...]

More... (http://www.universetoday.com/2009/11/10/finding-the-mama-bear-of-black-holes/)