Figure 1: Electron acceleration in the outer Van Allen radiation belt. Although the present results may provide a resolution to the debate over which mechanism is the dominant cause of ...

Electrons in a Van Allen radiation belt (blue) encounter whistler waves (purple) and are sent raining toward the north pole (red). THEMIS satellites are seen near the radiation belt, while UCLA ...

More by James A. Van Allen This article was originally published with the title “ Radiation Belts around the Earth ” in Scientific American Magazine Vol. 200 No. 3 ( March 1959 ) , p. 39 doi ...

Encircling Earth are the Van Allen radiation belts—vast, doughnut-shaped rings of highly energetic charged particles, mostly originating from the sun, that are trapped by our planet's magnetic ...

Two swaths of particles surrounding Earth called the radiation belts are one of the ... up to 99 percent the speed of light. The Van Allen Probes launched in August 2012, have now discovered ...

That’s well into the inner band of Earth’s Van Allen radiation belts, which begin at around 600 miles in altitude. The belts are areas where concentrations of high-energy particles that come ...

Dr. Baker also was the 2010 winner of the AIAA James A. Van Allen Space Environments Medal. He currently is lead investigator on several NASA space missions including NASA Magnetospheric Multiscale ...

In particular, recent work has focused on wave-particle interactions, solar wind-magnetosphere interactions, and energetic particle dynamics in Earth’s Van Allen radiation belts through analysis of ...