NASA: Flight of the Comet Hartley-2

Click on the picture to see the video clip of the Hartley-2 comet flyby. 

It is comprised of 40 frames taken from the spacecraft's Medium-Resolution Instrument during the encounter. Image credit: NASA/JPL-Caltech/UMD/Brown University
 
› See the movie here

More of the story - Flight of the Comet - NASA Jet Propulsion Laboratory