On July 4, 2005 the probe Deep Impact blasted a crater in Tempel 1, one of these celestial travelers
This image was captured by NASA's Deep Impact flyby spacecraft 67 ... On July 4
, 2005, while zooming along millions of miles from Earth, NASA's Deep ... Comet 
Tempel 1 at 23,000 mph (37,000 km/h), gouging out a crater about ... a safe 
distance, studying the material blasted into space by the impactor.