PIA00500: NIMS Ganymede Surface Map

Target Name: Ganymede Is a satellite of: Jupiter Mission: Galileo Spacecraft: Galileo Orbiter Instrument: Near Infrared Mapping Spectrometer Product Size: 1950 samples x 1500 lines Produced By: JPL Producer ID: P47903 MRPS76303 Addition Date: 1998-03-26 Other Information: Science Magazine Article Primary Data Set: Galileo EDRs Full-Res TIFF: PIA00500.tif (1.156 MB) Full-Res JPEG: PIA00500.jpg (170.1 kB)

Original Caption Released with Image: Galileo has eyes that can see more than ours can. By looking at what we call the infrared wavelengths, the NIMS (Near Infrared Mapping Spectrometer) instrument can determine what type and size of material is on the surface of a moon. Here, 3 images of Ganymede are shown. Left: Voyager's camera. Middle: NIMS, showing water ice on the surface. Dark is less water, bright is more. Right: NIMS, showing the locations of minerals in red, and the size of ice grains in shades of blue. This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov. Image Credit: NASA/JPL