James Van Allen

James Van Allen was an American scientist best known for discovering the Van Allen radiation belts—regions of trapped charged particles around Earth—using data from early space missions. His work revealed how Earth's magnetic field captures energetic particles, shaping our understanding of space environments. These belts are important for satellite safety and space exploration, as they influence how spacecraft operate and protect us from radiation. Van Allen's discoveries significantly advanced space science and helped pave the way for future missions beyond our planet.