Aug 18 2005
From The Space Library
A group of scientists led by David N. Burrows of Pennsylvania State University announced that they had found evidence of black holes behaving in a manner previously unknown. Using observations from NASA's Swift satellite, the scientists had discovered newly formed black holes that were simultaneously consuming matter while propelling away other material. They also observed that, after the black holes had emerged from large star explosions, the energy from the black holes' initial formative activities had caused several subsequent explosions during the following minutes, with a gamma-ray burst (GRB) from the first explosion followed by x-ray flares from later explosions. Previously, scientists had believed that black holes and GRBs were only associated with single explosions of collapsing stars, rather than with a rapid succession of explosions. The scientists had been able to conduct their analyses because NASA's Swift satellite could observe GRBs within minutes after their occurrence, whereas other satellites had only been able to observe GRBs hours after they had occurred.)
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