Scientists are using a video of Earth and the Moon taken from 31 million miles away to develop techniques to study alien worlds.
The Epoxi flight team fired their spacecraft's engine today to refine its trajectory. This trajectory sets the stage for an encounter with comet Hartley 2 on Nov. 4, 2010.
NASA's EPOXI spacecraft has temporarily halted EPOCH (Extrasolar Planet Observation and Characterization) observations starting this past Sunday, Feb. 17.
NASA's Deep Impact has been re-christened EPOXI.
A drawing of EPOXI's trajectory.
Deep Impact, now EPOXI, was launched in 2005.
A view of EPOXI's telescope assemblies.