Final answer:
The collision of Comet Shoemaker-Levy 9 with Jupiter revealed important information about comets and impacts on planetary bodies.
Step-by-step explanation:
The collision of Comet Shoemaker-Levy 9 with Jupiter provided important insights into the dynamics and composition of comets as well as the effects of impacts on planetary bodies. It demonstrated that comets can be captured into orbits around planets and confirmed the presence of water in comets. The impact also produced dark clouds of debris in Jupiter's stratosphere, which highlighted the potential dangers of comet or asteroid impacts on Earth.