Impactor Eyes Comet Target
Comet Tempel 1 as seen by the Deep Impact impactor targeting sensor at 7:44 Universal Time, July 3, 2005. This image was taken 1 hour and 37 minutes after the impactor was released from the flyby craft and is displayed on a logarithmic scale. The impactor was 808,478 kilometers (502,388 miles) away from the comet when the image was taken.
CREDIT: NASA/JPL-Caltech/UMD