• Launch date: 12 January 2005
• Overflight: 4 November 2010
• End of Mission: 1 October 2011
• Agency: NASA
The EPOXI mission recycled the Deep Impact spacecraft,which had formerly visited comet Tempel 1, to visit a second comet, Hartley 2. The Nov. 4, 2010, flyby marked only the fifth time a comet had been visited by a spacecraft.
Images snapped by the spacecraft uncovered a number of new details about the hyperactive Hartley 2, including observable variations in the strength, behavior and composition of jets on the comet’s surface.