CREPT, a small solid-state telescope, will fly aboard an upcoming NASA-sponsored Cubesat mission under NASA’s Low-Cost Access to Space (LCAS) program. It will measure energetic electrons and protons in Earth’s Van Allen Belts, giving scientists a better understanding of the physics of how the radiation belts lose electrons by a process known as electron microbursts.

To read more: http://www.nasa.gov/mission_pages/sunearth/news/cubesat-crept.html