Visit science.nasa.gov/ for more.

Most spacecraft try to avoid the Van Allen Belts, two doughnut-shaped regions around Earth filled with "killer electrons." This morning NASA launched two heavily-shielded spacecraft directly into the belts. The Radiation Belt Storm Probes are on a two-year mission to study the Van Allen Belts and to unravel the mystery of their unpredictability.

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…