Dark Fingerprints: Hubble sheds light on cosmic expansion | Science News

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Dark Fingerprints: Hubble sheds light on cosmic expansion

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9:28am, November 15, 2006

The mysterious cosmic push that's tearing apart the universe began revving up about 5 billion years ago. But a new study reveals that several billion years earlier, the bizarre, elastic substance that fuels this push was lurking in the shadows and already beginning to fight gravity's tendency to pull things together.

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