The Pair of Space Probes That Will Finally Demystify the Radiation Surrounding Earth (We Hope)

Concentric rings of highly charged radiation encircle our planet, and we know surprisingly little about them. But once NASA completes a $686 million mission to launch a twin pair of space probes into the eye of this solar storm, the Van Allen belts should be much less of a mystery. » 8/29/12 11:30am 8/29/12 11:30am