GOCE Satellite Maps Earth’s Gravity

GOCE map of Earth's geoid

The GOCE satellite has produced a highly detailed map of the variations in the Earth’s gravity field. It shows the difference between the regular ellipsoid shape that is used to represent the Earth’s shape and the geoid — a hypothetical surface of the Earth on which the surface is perpendicular to the gravitational pull. See BBC News and Universe Today for more information.

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