Radiation belt probe lifts off

NASA's finally launched its Radiation Belt Storm Probes (RBSP), the first twin-spacecraft mission designed to explore the Van Allen belts.

NASA prepares to explore Van Allen Radiation Belts



Countdown preparations for NASA's Radiation Belt Storm Probes (RBSP) kick off tonight at 8:52 p.m. EDT.

Belt of antimatter found circling Earth

The Earth is surrounded by a belt of antimatter - and it could perhaps be used to power future spacecraft, a team of scientists has suggested.