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Introducing Comet Hartley 2
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Introducing Comet Hartley 2

January 11, 2013
Comet Hartley 2 can be seen in glorious detail in this image from NASA's EPOXI mission. It was taken as the spacecraft flew by around 6:59 a.m. PDT (9:59 a.m. EDT), from a distance of about 700 kilometers (435 miles). The comet's nucleus, or main body, is approximately 2 kilometers (1.2 miles) long and .4 kilometers (.25 miles) at the "neck," or most narrow portion. Jets can be seen streaming out of the nucleus. The mission's Medium-Resolution Instrument was used to capture this view. Image credit: NASA/JPL-Caltech/UMD


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