"It's like a game of billiards around the solar system, flying by a couple of planets at just the right angle and timing to ...

Europa, one of Jupiter’s intriguing moons, is hiding an ocean beneath its icy shell — an ocean that might harbor alien life.

Europa's frozen, fissured surface, seen here in a colorized mosaic image from the Galileo spacecraft, hides a liquid ocean that may hold all the ingredients needed for life. Three key ingredients ...

NASA’s Europa Clipper is using Mars and Earth’s gravity to travel efficiently to Jupiter. The spacecraft will study Europa’s ...