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Bulge in Earth's Gravity Field Growing



Satellite data since 1998 indicates the bulge in the Earth's gravity
field at the equator is growing.

Such changes in the gravity field can be sensed using ultra precise
laser tracking of satellites to observe tiny changes in the orbits of
those satellites.

http://www.spaceflightnow.com/news/n0208/05bulge/

73, Jeff

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