images

Ganymede seen by Voyager 2

by

Nasa/JPL/Novapix

Reference

a-jup04-12000

Date

2006-10-01

This scene is approximately 1,300 kilometers (806 miles) across. It shows part of dark, densely cratered block which is bound on the south by lighter, and lesscratered, grooved terrain. The dark blocks are believed to be the oldest parts of Ganymede's surface. Numerous craters are visible, many with central peaks. Thelarge bright circular features have little relief and are probably the remnants of old, large craters that have been annealed by flow of the icy near-surface material. Image taken by Voyager 2 spaceprobe in july 1979, 313 000 km distant from Ganymede.