The Science of the Supernova

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Much like being blinded when someone turns on the lights to wake you up before dawn, on June 21, 2010, the Swift X-ray Telescope was blinded by the largest Gamma Ray Burst ever recorded.Gamma Ray Bursts (GRBs) are believed to occur when a massive star, meaning one much larger than our own Sun, suddenly collapses, explodes and spawns a black hole. But what is a gamma ray, why should a star suddenly collapse, and why would it explode? more...