These images, taken by the Hubble Space Telescope from 80 million miles
away, show comet 9P/Tempel 1 before and after the Deep Impact probe
slammed into it. Astronomers used these pictures to determine how
much material was released from the impact.
3 min. before impact
12 minutes after impact
At left, the innermost coma of dust appears 10 times brighter than the cloud in the pre-impact photo.
1 hr., 4 min. after impact
An expanding fan of dust speeds from the comet. The fan of debris is moving at 450 miles (720 km) per hour, or about the speed of a jet airplane.
1 hr., 28 min. after impact
4 hr., 41 min. after impact
19 hr., 7 min. after impact
At left, the dust cloud is 2,000 miles (3,200 km) across. It is
beginning to spread out into space, becoming less visible.
Photo series: NASA, ESA, P. Feldman (JHU), H. Weaver (JHU APL)