Here's what the future does hold: In 2022, NASA will launch a spacecraft dubbed the Europa Clipper into a long, looping orbit around Jupiter, allowing the craft to perform multiple flybys of the planet's icy moon. The clipper will carry magnetic sounding instruments to remotely probe the contents of Europa's ocean and thermal imaging tools to look for signs of recent eruptions of warmer water. An array of other gadgets will snap images of the moon and search for plumes of ice and gas like those seen on Enceladus - if they exist, their contents might hint at the chemistry of the oceans from which they erupt. From orbit, the clipper will assess whether the moon might host life and the where best places to search for it might be.