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Getting the low down on gravity

The GOCE mission, due to be launched in 2007, is ESA's first satellite dedicated to measuring the Earth’s gravity – a fundamental force of nature that influences many dynamic processes within the Earth’s interior, and on and above its surface.

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By measuring the Earth's gravity field and modelling the geoid, or hypothetical surface of the Earth, with extremely high accuracy and spatial resolution, GOCE will significantly advance our knowledge of how the Earth works in several domains – oceanography, geophysics and geodesy – as well as providing insight into the physics and dynamics of the Earth's interior, such as volcanism and earthquakes.

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Observing the Earth