EPOXI

EPOXI (Extrasolar Planet Observation and Deep Impact Extended Investigation) was a follow-on mission using the Deep Impact spacecraft, which was launched and completed its primary mission in 2005, a visit to comet Tempel 1. EPOXI then ran from 2005 to 2013 when contact was lost. It included two investigations:

• Deep Impact Extended Investigation (DIXI).
• Extrasolar Planet Observation and Characterization (EPOCh).

DIXI was a flyby of comet Hartley 2. EPOCh used the spacecraft's high-resolution instrument to carry out some photometry of extra-solar planets (to determine their apparent magnitude rather than to produce resolved images).