NASA / JPL / UMD
Comet ISON from Deep Impact
Deep Impact observed comet ISON on January 17 and 18, 2013, taking more than 150 photos. The comet was more than 5 AU away from Deep Impact at the time. These were the first space-based observations of comet ISON.
via Venerable Deep Impact spacecraft has photographed comet ISON | The Planetary Society.