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  • Comet-chasing probe wakes up, signals Earthadd to reading list  

    Posted on January 21, 2014 at 2:31 PM

    Waking up after almost three years of hibernation, a comet-chasing spacecraft sent its first signal back to Earth on Monday, prompting cheers from scientists who hope to use it to land the first space lander onto a comet.

    By Associated Press

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