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
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture Of the Day