James Alfred Van Allen (September 7, 1914 - August 9, 2006) was an American space scientist at the University of Iowa. The Van Allen radiation belts were named after him, following the 1958 satellite missions (Explorer 1 and Explorer 3) in which Van Allen had argued that a Geiger counter should be used to detect charged particles. Read more
James A. Van Allen, the University of Iowa scientist and pioneer of the early US space program and the discoverer of the Earths radiation belts, has passed away on Wednesday at the age of 91. Van Allen is best known for developing the instrument that detected the radiation belts that surround the Earth. The instrument flew aboard the first successful US satellite, Explorer 1, in 1958. The radiation belts were later named the Van Allen Belts. Van Allen was also involved in a number of other NASA planetary missions.