PIA18413: Reddish Bands on Europa
Target Name: Europa
Is a satellite of: Jupiter
Mission: Galileo
Spacecraft: Galileo Orbiter
Instrument: Solid-State Imaging
Product Size: 766 x 750 pixels (width x height)
Produced By: SETI Institute
Primary Data Set: Galileo EDRs
Full-Res TIFF: PIA18413.tif (1.724 MB)
Full-Res JPEG: PIA18413.jpg (200.8 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

This colorized image of Europa is a product of clear-filter grayscale data from one orbit of NASA's Galileo spacecraft, combined with lower-resolution color data taken on a different orbit. The blue-white terrains indicate relatively pure water ice, whereas the reddish areas contain water ice mixed with hydrated salts, potentially magnesium sulfate or sulfuric acid. The reddish material is associated with the broad band in the center of the image, as well as some of the narrower bands, ridges, and disrupted chaos-type features. It is possible that these surface features may have communicated with a global subsurface ocean layer during or after their formation.

Part of the terrain in this previously unreleased color view is seen in the monochrome image, PIA01125.

The image area measures approximately 101 by 103 miles (163 km by 167 km). The grayscale images were obtained on November 6, 1997, during the Galileo spacecraft's 11th orbit of Jupiter, when the spacecraft was approximately 13,237 miles (21,700 kilometers) from Europa. These images were then combined with lower-resolution color data obtained in 1998, during the spacecraft's 14th orbit of Jupiter, when the spacecraft was 89,000 miles (143,000 km) from Europa.

For more information about Europa, visit: http://solarsystem.nasa.gov/europa/home.cfm .

JPL is a division of the California Institute of Technology in Pasadena.

Image Credit:
NASA/JPL-Caltech/SETI Institute

Image Addition Date:
2014-07-08