New Gravity Map of Mars

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A map of Martian gravity looking down on the North Pole (White and red are areas of higher gravity; blue indicates areas of lower gravity).

Credits: MIT/UMBC-CRESST/GSFC

A map of Martian gravity looking down at the South Pole (White and red are areas of higher gravity; blue indicates areas of lower gravity).

Credits: MIT/UMBC-CRESST/GSFC



A Martian gravity map showing the Tharsis volcanoes and surrounding flexure (The white areas in the center are higher-gravity regions produced by the massive Tharsis volcanoes, and the surrounding blue areas are lower-gravity regions that may be cracks in the crust /lithosphere/).

Credits: MIT/UMBC-CRESST/GSFC

Scientists have used small fluctuations in the orbits of three NASA spacecraft to map the gravity field of Mars.

Via nasa.gov