It is a big mission for NASA’s huge spacecraft the Europa Clipper. Traveling nearly two billion miles to Jupiter’s moon, Europa. The ship is NASA’s largest ever to travel through space on this one-of-a-kind mission.

A NASA spacecraft has blasted off on a quest to explore Jupiter's moon Europa and reveal whether its hidden ocean might hold the keys to life.

The ambitious mission won't actually look for life on Jupiter's moon Europa, but it should find out if the presumed ocean provides a habitable environment.