U.S. Geological Survey researchers have produced the first complete global geologic map of the Jupiter’s largest moon, Ganymede. Global geologic map of Ganymede. Image credit: Collins G.C. et al. Discovered in 1610, Ganymede has a diameter of 5,268 km, around 8 percent larger than that of Mercury and much larger than Pluto. The history of this largest moon in our Solar System can be divided into three phases: an early phase dominated by impact cratering...
