Hydrated Salt Minerals on Ganymede's Surface: Evidence of an Ocean Below
- 25 May 2001
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 292 (5521) , 1523-1525
- https://doi.org/10.1126/science.1059916
Abstract
Reflectance spectra from Galileo's near-infrared mapping spectrometer (NIMS) suggests that the surface of Ganymede, the largest satellite of Jupiter, contains hydrated materials. These materials are interpreted to be similar to those found on Europa, that is, mostly frozen magnesium sulfate brines that are derived from a subsurface briny layer of fluid.Keywords
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