Van Allen Probes in Orbit
Van Allen Probes in Orbit

Artist's rendition of the Van Allen Probes in orbit around Earth. The Van Allen Probes will study how spaceweather affects Earth's radiation belts, two donut-like areas of trapped particles the reside within the Earth's magnetic field. Credit: NASA/Goddard Space Flight Center

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Page Last Updated: July 28th, 2013
Page Editor: NASA Administrator