Comet Shoemaker-Levy 9 was a unique comet discovered in 1993 by astronomers Eugene Shoemaker, Carolyn Shoemaker, and David Levy. It gained fame for its spectacular collision with Jupiter in July 1994. This event was remarkable because it was the first time scientists observed a comet impacting a planet, providing valuable insights into the dynamics of celestial bodies. The comet was broken into multiple fragments due to Jupiter's strong gravitational pull. As these pieces crashed into the planet, they created massive fireballs and left dark scars in its atmosphere. This event helped astronomers understand more about the composition of comets and the potential threats they pose to Earth.