mrt 022013
 
A New Radiation Belt Around Earth Discovered

  NASA’s Van Allen Probes mission has discovered a previously unknown third radiation belt around Earth, revealing the existence of unexpected structures and processes within these hazardous regions of space. A graphic depicting the twin Van Allen Probes in orbit within Earth’s magnetic field. Image Credit: JHU/APL Previous observations of Earth’s Van Allen Radiation Belts have [continue reading]

aug 272012
 
 The Van Allen Radiation Belts to be Examined

  A University of Minnesota-led experiment is aboard NASA’s Radiation Belt Storm Probes (RBSP) mission, a probe of the forces that govern radiation in the Van Allen Radiation Belts. These two concentric, doughnut-shaped regions of space girdle the Earth and pose radiation danger to astronauts and spacecraft. The twin RBSP satellites and the Van Allen [continue reading]

jul 192012
 
NASA will Study Plasma in Earth's Atmosphere

  Our day-to-day lives exist in what physicists would call an electrically neutral environment. Desks, books, chairs and bodies don’t generally carry electricity and they don’t stick to magnets. But life on Earth is substantially different from, well, almost everywhere else. Beyond Earth’s protective atmosphere and extending all the way through interplanetary space, electrified particles [continue reading]