Comet shoemaker-Levy 9 hit the planet:
(a) Pluto (b) Mars (c) Jupiter (d) Saturn
(c) Comet Shoemaker-Levy 9 was discovered by Keroshil Shoemaker and David Levy on 24th March 1994. This comet was roaming for 4 billion years and it came under the gravitational impact of Jupiter and in collided with it 1994.
