Fields of Minerals on Ganymede
Explanation:
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
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.
