The first balloon for the 2013-2014 BARREL campaign launched on Dec. 27, 2013 in Antarctica. BARREL’s job is to help unravel the mysterious radiation belts, two gigantic donuts of particles that surround Earth. Credit: BARREL
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The first balloon for the 2013-2014 BARREL campaign launched on Dec. 27, 2013 in Antarctica. BARREL’s job is to help unravel the mysterious radiation belts, two gigantic donuts of particles that surround Earth. Credit: BARREL