Gamma-ray Bursts (GRBs), as you can guess from their name, as short bursts of gamma-rays. Often time, after these explosions, one can detect a very faint afterglow at optical wavelengths that disappears fairly quickly...
.... until the night of 18 March 2008, where an all-sky monitor in Chile run by the "Pi of the Sky" group (based in Poland) saw a bright flash of light from a GRB two seconds before Swift, a satellite devoted to detecting GRBs, noticed a GRB had occurred. For more info, go here. This is a pretty exciting event!
Monday, March 24, 2008
Optical movie of a Gamma-Ray Burst
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