PIA01071: Changes on Io around Volund between Voyager 1 and Galileo's Second Orbit
Target Name: Io
Is a satellite of: Jupiter
Mission: Galileo
Spacecraft: Galileo Orbiter
Instrument: Solid-State Imaging
Product Size: 228 x 113 pixels (width x height)
Produced By: University of Arizona / LPL
Producer ID: P49552
MRPS85879
Addition Date: 1997-11-18
Primary Data Set: Galileo EDRs
Full-Res TIFF: PIA01071.tif (75.86 kB)
Full-Res JPEG: PIA01071.jpg (4.377 kB)

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Original Caption Released with Image:

Detail of changes on Jupiter's moon Io in the region around Volund as seen by the Voyager 1 spacecraft in April 1979 (left frame) and NASA's Galileo spacecraft in September 1996 (right frame). North is to the top of both frames which are approximately 600 kilometers by 600 kilometers. Note the new linear feature, which may be a volcanic fissure, trending east from the southern end of Volund. Dark diffuse material lies to the west and a ring of bright material which may be SO2- rich plume deposits appears to be centered near the middle of the new linear feature.

The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC. JPL is an operating division of California Institute of Technology (Caltech).

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. Background information and educational context for the images can be found at http://www.jpl.nasa.gov/galileo/sepo.

Image Credit:
NASA/JPL/University of Arizona

Image Addition Date:
1997-11-18