Death of massive star creates brightest burst ever seen

Gamma-Ray Bursts are the most powerful explosive events in the Universe. They occur in far-off galaxies and so are usually faint. But on the morning of March 19th 2008 the Swift satellite found a burst which was so bright it could have been seen without binoculars or a telescope even though it was seven thousand times further away than the Andromeda galaxy.

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<p><a href="http://www.physorg.com/news125227383.html">Death of massive star creates brightest burst ever seen</a></p> <p>Gamma-Ray Bursts are the most powerful explosive events in the Universe. They occur in far-off galaxies and so are usually faint. But on the morning of March 19th 2008 the Swift satellite found a burst which was so bright it could have been seen without binoculars or a telescope even though it was seven thousand times further away than the Andromeda galaxy.</p>