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The concentric rings surrounding Valhalla are perhaps the most distinctive geological feature on Callisto. This NASA Voyager 1 close-up shows a segment of the ridged terrain.
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Concentric Rings Surrounding Valhalla

The concentric rings surrounding Valhalla are perhaps the most distinctive geological feature on Callisto. This Voyager 1 close-up shows a segment of the ridged terrain. The presence of superimpact craters shows that the rings formed early in Callisto's history; however, the density of craters is less here than on other parts of the satellite, where the surface is older.

Image details

ID#:
PIA00484

Date added:
1997-01-09

Target:
Callisto

Mission:
Voyager

Spacecraft:
Voyager 1

Instruments:
Imaging Science Subsystem - Narrow Angle

Size:
740 x 750 pixels (width x height)

Rating:



Views:
2,447

Full-Res TIFF:
PIA00484.tif (0.69 MB)

Full-Res JPG:
PIA00484.jpg (0.19 MB)

Image credit:
NASA/JPL