NASA’s Deep Impact Spacecraft Images Comet ISON

This series of images of comet C/2012 S1 (ISON) was taken by the Medium-Resolution Imager of NASA’s Deep Impact spacecraft over a 36-hour period on Jan. 17 and 18, 2013.

At the time, the spacecraft was 493 million miles (793 million kilometers) from the comet. Image credit: NASA/JPL-Caltech/UMD

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