Last updated on April 24, 2014 at 14:25 EDT
Gamma-ray bursts the most powerful explosions in the
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Gamma-ray bursts: the most powerful explosions in the Universe

January 25, 2013
This artist's impression illustrates how a gamma-ray burst can flare dramatically over a short time period. Gamma-ray bursts can occur as often as several time a day but they last for no longer than a couple of minutes. There is no way to predict when or where they will next occur. ESA missions such as XMM-Newton, INTEGRAL and Ulysses study these mysterious, powerful bursts. Copyright: ESA 2002. Illustration by Medialab