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Unique Explosion: Gamma-ray burst leads astronomers to supernova

Using scores of telescopes, astronomers worldwide are chasing one of the most intriguing stellar explosions detected in nearly a decade. The supernova—a catastrophic collapse of a massive star—is one of only a handful of these explosions known to have been heralded by a burst of gamma rays.

The observations confirm that material blasting out from a collapsing star generates a gamma-ray burst. The burst races out into space ahead of the visible, fiery glow from the supernova explosion.

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