A 2005 visualization of Earth's geoid, nicknamed the "Potsdam Gravity Potato," based on data from GRACE and CHAMP satellites. Red areas indicate stronger gravity, blue areas weaker. Variations are due to surface features and subsurface density differences.

Astronomy Picture from 15/12/2014

The Potsdam Gravity Potato

Source: https://apod.nasa.gov/apod/ap141215.html


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