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Hartley 2 from Deep Impact, October 23

Hartley 2 from Deep Impact, October 23
Hartley 2 from Deep Impact, October 23 Deep Impact took this photo of Hartley 2 on October 23, 2010, 11 days before its flyby of the comet. There is now a clear fuzz of coma and tail. The comet was 13 million kilometers from the spacecraft. NASA / JPL-Caltech / UMD