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NASA’s Van Allen Probes discover a surprise circling Earth

After most NASA science spacecraft launches, researchers wait patiently for months as instruments on board are turned on one at a time, slowly ramped up to full power, and tested to make sure they work at full capacity. It’s a rite of passage for any new satellite in space, and such a schedule was in place for the Van Allen Probes when they launched on Aug. 30, 2012, to study two giant belts of radiation that surround Earth.

Fuente : http://www.eurekalert.org/pub_releases/2013-02/nsf…

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