What are the Van Allen belts? Learn how these giant rings of charged particles cause problems for astronauts and satellites.

"We study radiation belts because they pose a hazard to spacecraft and astronauts," said David Sibeck, the Van Allen Probes mission scientist at NASA's Goddard Space Flight Center in Maryland ...

Van Allen, who worked at APL during and after World War II, also is credited with discovery of a new moon of Saturn in 1979, as well as radiation belts around that planet.

NASA's twin Van Allen Probes spacecraft have shown that high-energy electrons in the inner radiation belt display a persistent pattern that resembles slanted zebra stripes.

It was named the Van Allen radiation belt, after its discoverer, U.S. space scientist James Van Allen. But not much was known about it until NASA launched two probes in 2012. Scientists say the ...

NASA's twin Van Allen space probes, which are studying the Earth's radiation belts, made the cosmic find. The surprising discovery — a new, albeit temporary, radiation belt around Earth ...

NASA’s twin Van Allen space probes, which are studying the Earth’s radiation belts, made the cosmic find. The surprising discovery — a new, albeit temporary, radiation belt around Earth ...

NASA’s Van Allen Probes mission has discovered a previously unknown third radiation belt around Earth, revealing the existence of unexpected structures and processes within these hazardous ...

NASA has announced that the twin Van Allen Probes that have been orbiting ... The probes have been exploring the Earth's radiation belts since they launched in 2012. During their mission, the ...

Why, then, is NASA sending its next unmanned mission ... and are named after their discoverer James Van Allen. They are two belts of radiation caused by the interaction of the Sun and the Earth ...