What treasures lie on the surface of Ganymede?
Last week, NASA released a map of Jupiter's largest moon made
by the Galileo Orbiter
highlighting ice and minerals deposits. The leftmost photograph
by Voyager
shows surface features in visible light, but the rightmost photograph,
taken in infrared light by Galileo, shows the locations of minerals in red and ice
grains in blue. The NIMS team
is working to identify these minerals with preliminary hopes
of finding emission indicative of montmorillonite
and alunite
