A massive NASA spacecraft is ready to set sail for Jupiter and its moon Europa. The craft named Europa Clipper will peer beneath the moon's icy crust and determine whether conditions there could support life. Scientists are pretty sure there's a vast hidden ocean at Europa, making the moon one of the best bets for finding life beyond Earth. Due to launch this month from Florida, Europa Clipper won't search for life. Instead, it will look for the ingredients necessary for life to exist. It will take 5 1/2 years for the spacecraft to get there.
