ZUBER ET AL / JOHNS HOPKINS UNIVERSITY / NASA / SCIENCE PHOTO LIBRARY ZUBER ET AL / JOHNS HOPKINS UNIVERSITY / NASA / SCIENCE PHOTO LIBRARY
Lunar gravity. Map of gravity around the Moon, derived from data gathered by the Clementine spacecraft. The map shows differences between the gravity distribution predicted by a computer model and observed gravity. Yellow areas are those where the model is correct. Red areas have higher gravity than expected; green, blue and purple have progressively less than predicted. The gravity data were gathered by measuring velocity deviations of Clementine in orbit. The prominent feature at bottom centre is the Mare Orientale.
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