Van Allen Probes Reveal Long-Term Behavior of Earth's Ring Current

Van Allen Probes Reveal Long-Term Behavior of Earth's Ring Current Laurel MD (SPX) May 20, 2016 - New findings based on a year's worth of observations from NASA's Van Allen Probes have revealed that the ring current - an electrical current carried by energetic ions that encircles our planet - behaves in a much different way than previously understood. The ring current has long been thought to wax and wane over time, but the new observations show that this is true of only some of the particle ... more

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