The Bane World, although that's possibly not its real name, was the homeworld of the Bane race. An unknown event, either something caused the planet to become uninhabitable or it was destroyed, caused a group of Bane, lead by the Bane Mother to invade Earth in 2009.
They attempted to convert Humans into Bane and turn Earth into a new Bane World, but they plan was stopped by Sarah Jane Smith. (SJA: Invasion of the Bane)