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Researchers said the gamma-ray burst they observed may have been caused by the collision of two compact stars in the densely packed and chaotic environment near a supermassive black hole at the center of this elliptically shaped galaxy.
Very massive stars - more than 10 times the sun's mass - die in a supernova blast that leaves behind neutron stars or even denser black holes, whose gravitational pull is so strong no matter or light can escape
Researchers said the gamma-ray burst they observed may have been caused by the collision of two compact stars in the densely packed and chaotic environment.
By Will Dunham WASHINGTON (Reuters) - Astronomers have spotted an immensely energetic explosion emanating from an ancient galaxy, apparently triggered...
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