Enceladus

Enceladus is a small moon of Saturn, which, according to Professor Farnsworth, is "Saturn's main dump moon." The Nerd Search '88 satellite was dumped on this moon in 2113 as space junk. On this satellite, there was a sample of the un-mutated cold virus, as part of an experiment by Josh Gedgie to see what would happen to viruses if put in space. The virus sample was removed by Fry, Leela, Bender and Professor Farnsworth in 3011 in order to make a vaccine for common cold. Other space junk may have been dumped on this moon as well. However, much of this junk was covered up by centuries of ice buildup.