Press Release 11 Dec
By: Jim Shirley , NASA's Jet Propulsion Laboratory Bob Pappalardo , NASA's Jet Propulsion Laboratory
A new analysis of data from NASA's Galileo mission has revealed clay-type minerals at the surface of Jupiter's icy moon Europa that appear to have been delivered by a spectacular collision with an asteroid or comet. This is the first time such minerals have been detected on Europa's surface. The types of space rocks that deliver such minerals typically also often carry organic materials. More information is at