Radiation Belt Storm Probes Premier in 2012

The Radiation Belt Storm Probes Mission, part of NASA's Living With a Star program, will provide unprecedented insight into the physical dynamics of the radiation belts and give scientists the data they need to make predictions of changes in this critical region of space.

Beginning in shortly after a May 2012 launch, two spacecraft will orbit the Earth, sampling the harsh radiation belt environment where major space weather activity occurs and many spacecraft operate.

The two spacecraft will measure the particles, magnetic and electric fields, and waves that fill geospace. Only with two spacecraft taking identical measurements and following the same path, can scientists begin to understand how the belts change in both space and time.