Martian rocks and outcrops have been studied in-situ by various landers and rovers.
While many of the rocks identified on the Martian surface are similar to each other, some have been considered scientifically important or otherwise notable and have been subjected to more extensive study or public interest.
Often rocks are named after the children or family members of astronauts or NASA employees.
[citation needed] The rocks at the landing site of the Sojourner rover were given names of cartoon characters.
Among them were Pop Tart, Ender, mini-Matterhorn, Wedge, Baker's Bench, Scooby Doo, Yogi, Barnacle Bill, Pooh Bear, Piglet, the Lamb, the Shark, Ginger, Souffle, Casper, Moe, and Stimpy.