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<http://www.space.com/scienceastronomy/gravity_map_030725.html>
GRACE researchers plan to generate a new gravity map about every 30 days, the length of time it takes for the satellite pair to pass over each point on Earth once, and about 60 maps total over the mission's initial five-year timeframe. By building a monthly picture of the Earth's gravitational field, researchers hope to precisely determine the planet's average tug of gravity and track variations due to changes in weather or climate. [You've got to view this gravity map -- some people think gravity is uniform...<b>This%20animated%20GIF%20shows%20the%20GRACE%20maps%20the%20Earth's%20gravity.>]
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The Fate of the Universe hangs in the balance of dynamics: spin, outflow & shadows!
