The SS Silverberg was a Space Corps Spaceship containing an experimental computer named Cassandra that could predict the future with an accuracy of 100%, found in the Series VIII episode "Cassandra". After finding out how dangerous to the mind of a human knowing the future could be, the Space Corps sent the Silverberg and its computer into Deep Space where it crashed into an ocean moon. The Red Dwarf later encountered the moon and thought that something had taken the ship down and eaten its crew, bones and all. They sent in their convict army called the Canaries in the Diving Bell (this team was comprised of Lister, Kryten, Rimmer, Cat, Kochanski, Holly, Knot, and Kill Crazy among others).