![Model of Earth in large rose colored room with radiation simulation arcs, and technician looking through window](https://www.nasa.gov/wp-content/uploads/2023/03/135026main_image_feature_419_ys_full.jpg)
Simulated Van Allen Belts
In this 1966 photo, a plasma thruster at NASA's Lewis Research Center simulates Van Allen Belts, rings of radiation around the Earth. The Cleveland, Ohio, center is now John H. Glenn Research Center.
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https://www.nasa.gov/image-detail/simulated-van-allen-belts/
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