Van Allen radiation belt
The belts are in the inner region of Earth's magnetosphere. The belts trap energetic electrons and protons. The belts endanger satellites, which must have their sensitive components protected with adequate shielding if they spend much time in that zone. In 2013, NASA reported that the Van Allen Probes had discovered a third radiation belt, which was observed for four weeks. It was destroyed by a powerful, interplanetary shock wave from the Sun.