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NASA Mission Update: GRACE

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Published on Jan 9, 2009

Date- 9th Jan 09 Source- http://www.nasa.gov/multimedia/podcas...

'Everything, from the motion of the ocean tides, to the expansion of the universe, is controlled by gravity.

Here on Earth, gravity's pull varies from place to place, depending upon an area's mass. Making precise measurements of these variations is the mission of the Gravity Recovery and Climate Experiment, or GRACE.'

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