Articles Tagged as "Swift"
Swift and XMM-Newton Satellites spots a Middleweight Black Hole
By Sandy on November 10, 2009
Good news for all who are interested in black holes! Astronomers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, find that an X-ray source in galaxy NGC 5408 that represents one of the best cases for a middleweight black hole to date. While astronomers have studied lightweight and heavyweight black holes for decades, the evidence for black holes with Read more »
