Jupiter - the Roman God of the Sky and Thunder, King of the gods, and the name given to the largest planet in our solar system. It's a planet so large that, not including the sun, the rest of the solar system would fit inside with plenty of room to spare.
Jupiter's moons are named after the god's many lovers. According to mythology, when Jupiter thought his wife suspected him of cheating, he turned himself into a cloud to cover his affairs.
Now, NASA has sent the Juno Spacecraft, named after Jupiter's wife, to discover just what Jupiter has hidden beneath its clouds.