ZUBER ET AL / JOHNS HOPKINS UNIVERSITY / NASA / SCIENCE PHOTO LIBRARY ZUBER ET AL / JOHNS HOPKINS UNIVERSITY / NASA / SCIENCE PHOTO LIBRARY
Lunar crust. Map showing the crustal thickness over the whole Moon, derived from data gathered by the Clementine spacecraft. The Moon's near side is at right, the far side at left. Colours represent crust thickness: from purple (less than 30km) to blue (30-50km), green (50-60km), yellow (60-80km), red (over 80km). Large impact basins show as thin crustal areas (purple), including the great 'seas' of the near side (upper right). The small purple impact basin at lower centre is the Mare Orientale. The far side is dominated by thick mountain terrain but also has the large SP-Aitken impact area in the south (blue, lower left).
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