The cataclysmic explosion of a giant star early in the history of the Universe is the most distant single object ever detected by telescopes.
The colossal blast was picked up first by Nasa's Swift space observatory which is tuned to see the high-energy gamma-rays emitted from extreme events.
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The colossal blast was picked up first by Nasa's Swift space observatory which is tuned to see the high-energy gamma-rays emitted from extreme events.
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