Ganymede
Media playback is unsupported on your device

Europe chooses Jupiter icy moons mission

2 May 2012 Last updated at 15:59 BST

The European Space Agency is to mount a billion-euro mission to Jupiter and its icy moons.

The probe, called Juice, would be built in time for a launch in 2022, although it would be a further eight years before it reached the Jovian system.

Prof Michele Dougherty from Imperial College London, UK, was part of the science team that devised the mission. She described to our correspondent Jonathan Amos what Juice would try to achieve.