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Episode 160: Intense Explosion

Play May 8•4:17

On March 19, the most intense explosion ever recorded appeared in the night sky. It shone dimly for less than a minute, then vanished. It was a gamma ray burst 7.5 billion light years away, but so bright it could be seen -- though faintly -- by the naked eye. Astronomers estimate that the burst was as bright as 10 million galaxies combined. Such bursts are thought to be caused by hypernova...

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