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Van Allen

American  
[van al-uhn] / væn ˈæl ən /

noun

  1. James Alfred, 1914–2006, U.S. physicist and space scientist.


Van Allen British  
/ væn ˈælən /

noun

  1. James Alfred. 1914–2006, US physicist, noted for his use of satellites to investigate cosmic radiation in the upper atmosphere

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Those rings, called the Van Allen belts, shield Earth from cosmic radiation, solar storms and streaming solar wind, which are harmful to humans and can damage technology.

From BBC • Mar. 10, 2026

The research focused on two bands of energetic particles in near earth space, referred to as the Radiation Belts, or the Van Allen Belts.

From Science Daily • Mar. 21, 2024

He also made the first radio map of the Milky Way’s center, and co-discovered regions of seething radiation around Jupiter analogous to Earth’s Van Allen belts.

From Scientific American • Sep. 6, 2022

“Color is science, but it’s also math, it’s art, it’s psychology,” said Peggy Van Allen.

From Washington Post • Aug. 25, 2022

Explorer I was launched with a scientific unit that discovered the magnetic radiation belts around the Earth, later known as the Van Allen belts.

From "Women in Space" by Karen Bush Gibson