The observatory witnessed a once-in-a-lifetime event: an invasion of Jupiter in 1994 as pieces of comet Shoemaker-Levy 9 plunged into the planet's atmosphere. Hubble had been watching the debris ever since the comet was ripped apart in 1992 by the massive planet's gravitational muscle.
The telescope's sharp vision provided detailed pictures of the plumes of debris kicked up by the bombardment. For several days Hubble followed the expansion of the impact sites.
Credit: Hubble Space Telescope Comet Team and NASA