Satellites Measure Earth's Magnetic Field
This is a news story, published by MSN, that relates primarily to ESA news.
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magnetic field variationsJW Player
•Earth Generates A Mysterious Magnetic Wave Every 7 years
75% Informative
ESA 's Swarm satellites have revealed a new type of wave motion mapped at the core Mantel boundary.
The wave oscillates around every seven years , propagating westward at 1500 kilometers a year.
Future measurements from space could help us understand more about the electrical properties of the lower mantle and about the magnetic field.
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