An artist's illustration of Jupiter's icy moon Europa, with a water geyser erupting in the foreground while Jupiter appears as a backdrop. Images from the Hubble Space Telescope suggest Europa may have water plumes like Saturn's moon Enceladus. Image released Dec. 12, 2013
Cassini probe captures Saturn's spectacular aurora. Generally, images of the aurora (equivalent to Earth's‘northern lights’) provide valuable information about the electromagnetic connection between the solar wind, the planet’s magnetic field (magnetosphere) and its upper atmosphere. The Daily Galaxy via Cassini/NASA.