VOYAGER 2

VOYAGER 2 was NASA's interplanetary space-probe, which after leaving the Sol system in 2007, strayed into a wormhole in space. It traveled through that wormhole into the Clotharian Galaxy, and a Clotharian military installation. The Clotharians were angry, but nice enough to return it with nano-bots who would destroy all technology on Earth. ("The Clotharian Contamination Protocol")