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HubbleSite Hubble Assists Rosetta Comet Mission

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Space Telescope Science

Results from NASA's Hubble Space Telescope played a major role in preparing ESA's ambitious Rosetta mission for its new target, comet 67P/Churyumov-Gerasimenko (67P/C-G). For the first time in history, Rosetta will land a probe on a comet and study its origin. Hubble precisely measured the size, shape, and rotational period of comet 67P/C-G. The Hubble observations revealed comet 67P/C-G to be a football-shaped object of approximately three miles by two miles in size---large enough to provide a landing site for the Rosetta mission probe.

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