22. What is the closest we've ever been to a comet? (A K2S Question)

From The Space Library

In July 2005, a portion of the Deep Impact spacecraft actually collided with a comet—a planned collision. The rest of the spacecraft passed a few miles away from the comet's nucleus.

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Answer provided by Alan Hale, Ph.D. & Capt. USN (Ret.) William Readdy

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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