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How Big is Rosetta's Comet? - Universe Today
Pretty darn big, I’d say. The illustration above shows the relative scale of the comet that ESA’s Rosetta and Philae spacecraft will explore “up-close and personal” later this year. And while it’s one thing to say that the nucleus of Comet 67P/Churyumov-Gerasimenko is about three by five kilometers in diameter, it’s quite another to see … Continue reading "How Big is Rosetta’s Comet?"