http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys2185.html
UCLA astronomers solve mystery of vanishing electrons
A team of researchers from ESS, including Drew Turner, Yuri Shprits, Michael Hartinger, and Vassilis Angelopoulos, have advanced the understanding of space weather so that the satellites used for global positioning, communications, and weather monitoring can be better protected. They used recent findings from THEMIS to show how energetic electrons from Earth's radiation betls get lost in interplanetary space.