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James Alfred Van Allen (September 7, 1914 – August 9, 2006) was an American space scientist at the University of Iowa. He was instrumental in establishing the field of magnetospheric research in space.
May 11, 2018 · James Van Allen, a physicist at the University of Iowa, discovered these radiation belts in 1958 after the launch of Explorer 1, the first U.S. satellite. The radiation belts were...
Apr 12, 2024 · James A. Van Allen (born Sept. 7, 1914, Mount Pleasant, Iowa, U.S.—died Aug. 9, 2006, Iowa City, Iowa) was an American physicist, whose discovery of the Van Allen radiation belts, two zones of radiation encircling Earth, brought about new understanding of cosmic radiation and its effects on Earth.
- The Editors of Encyclopaedia Britannica
- Two radiation belts filled with electrons and charged particles surround Earth. The inner one is fairly stable, but the outer one swells and shrinks over time.
- The radiation belts look like two giant donuts. Earth sits at the center of the “donut hole.”
- When the inner belt swells, this region of dangerous radiation expands to include the orbits of the International Space Station and many other satellites.
- The first evidence for the radiation belts was reported in 1958 by James Van Allen using data from a cosmic ray detector on the very first NASA mission: Explorer 1 spacecraft.
May 18, 2015 · Space scientist James Van Allen and his team at the University of Iowa were the first to discover the radiation belts, now also referred to as “The Van Allen Belts.” For some, this scientific discovery was almost a postscript to a crucial space age first – the experiment that discovered the belts flew aboard the very first American ...
- Jamie Adkins
Biography. James A. Van Allen, Space Pioneer. The "Father of Space Science" Born in Mt. Pleasant, Iowa on September 7, 1914, James A. Van Allen attended public schools and Iowa Wesleyan College in Mt. Pleasant.
Jan 31, 2018 · The inner belt, composed predominantly of protons, and the outer belt, mostly electrons, would come to be named the Van Allen Belts, after James Van Allen, the scientist who led the charge designing the instruments and studying the radiation data from Explorer 1.
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