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News Release Archive:

News Release 579 of 967

April 2, 2001 01:00 PM (EDT)

News Release Number: STScI-2001-09

Blast from the Past: Farthest Supernova Ever Seen Sheds Light on Dark Universe

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Image: The Expanding Universe

The Expanding Universe

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This diagram shows how the universe slowed down and then revved up since the Big Bang. The concentric red circles denote that galaxies are migrating apart at a slower rate during the first half of the cosmos. Than a mysterious dark force overcame gravity and began pushing galaxies apart at an ever-faster rate, signified by the green circles. Astronomers found evidence of the universe's deceleration when they observed the farthest supernova ever seen, which detonated so long ago that the universe was still slowing down.

Image Type: Illustration

Credit: Ann Feild (STScI)

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