Earth is surrounded by giant, donut-shaped clouds of radiation. These are the Van Allen Belts. The wild particles trapped here can affect our technology and astronauts that pass through this region — so we’ve sent twin spacecraft to study them. Here are five things to know!
Animations by: Los Alamos National Laboratory Music: Funk the Floor by UltraCat [FMA], Something Elated by Broke For Free [FMA]