NASA's Deep Space Comet Hunter Mission Comes to an End

After almost 9 years in space that included an unprecedented July 4th impact and subsequent flyby of a comet, an additional comet flyby, and the return of approximately 500,000 images of celestial objects, NASA's Deep Impact mission has ended.

via NASA Breaking News

http://www.nasa.gov/press/2013/september/nasas-deep-space-comet-hunter-mission-comes-to-an-end