ESA's Jupiter Icy Moons Explorer, Juice, being unpacked from its shipping container in the Hydra clean room at ESA's European Space Research and Technology Centre, ESTEC in the Netherlands on 30 April 2020.

Juice will undergo environmental testing in ESTEC's Large Space Simulator to replicate the extreme heating and cooling cycles that the spacecraft will experience on its way to Jupiter.

Once in the Jovian system the mission will spend at least three years making detailed observations of the giant gaseous planet Jupiter and its three large ocean-bearing moons: Ganymede, Callisto and Europa.