Cosmic explosion last year may be 'brightest ever seen' | Astronomy

Astronomers say gamma-ray burst may have been result of star collapsing to form black hole

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Netherlands ,Dan Perley ,Andrew Levan ,European Space Agency ,Radboud University In Nijmegen ,University Liverpool Telescope ,Astrophysics Research Institute ,Liverpool John Moores University ,Liverpool Telescope ,Radboud University ,Astrophysical Journal ,