Geologic map of Jupiter's moon Io details an otherworldly volcanic surfaceMore than 400 years after Galileo's discovery of Io, the innermost of Jupiter's largest moons, a team of scientists has produced the first complete global geologic map of the Jovian satellite.
Source: Geologic map of Jupiter's moon Io details an otherworldly volcanic surface (http://www.sciencedaily.com/releases/2012/03/120319151145.htm)