This image shows NASA's Deep Impact spacecraft being built at Ball
Aerospace & Technologies Corporation, Boulder, Colo. On July 2, at
10:52 p.m. Pacific time (1:52 a.m. Eastern time, July 3), the spacecraft's
impactor will be released from Deep Impact's flyby spacecraft. One day
later, it will collide with Tempel 1. The impactor cannot directly talk to
Earth, so it will communicate via the flyby spacecraft during its final day.
The two spacecraft communicate at "S-band" frequency. The flyby's
S-band antenna is the gold, rectangle-shaped object seen on the
spacecraft, in the middle of this picture.
