GMM-3_Mars_Gravity.webm


Summary

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English: Scientists have used small fluctuations in the orbits of three NASA spacecraft to map the gravity field of Mars.
Date
Source NASA's Scientific Visualization Studio
Author NASA's Scientific Visualization Studio

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Public domain This file is in the public domain in the United States because it was solely created by NASA . NASA copyright policy states that "NASA material is not protected by copyright unless noted ". (See Template:PD-USGov , NASA copyright policy page or JPL Image Use Policy .)
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21 March 2016