Van Allen probes revolutionize view of radiation belts

About 600 miles from Earth's surface is the first of two donut-shaped electron swarms, known as the Van Allen Belts, or the radiation belts. Understanding the shape and size of the belts, which can shrink and swell in response ...

Study of electrons in space could help weather forecasting

Researchers have discovered a formerly undetected impact of space weather on the polar atmosphere, which may explain some previously unexplained variations in winter weather patterns. Their results, published today (Tuesday ...

Van Allen Probes reveal new dynamics of radiation belts

(Phys.org)—Just 96 days since their launch, NASA's twin Van Allen Probes have already provided new insights into the structure and behavior of the radiation belts that surround Earth, giving scientists a clearer understanding ...

NASA spacecraft records 'Earthsong'

Nobody ever said anything about singing, though. A NASA spacecraft has just beamed back a beautiful song sung by our own planet.

THEMIS satellite sees a great electron escape

(PhysOrg.com) -- When scientists discovered two great swaths of radiation encircling Earth in the 1950s, it spawned over-the-top fears about "killer electrons" and space radiation effects on Earthlings. The fears were soon ...

Shedding light on the science of auroral breakups

Auroras, also known as Northern or Southern lights depending on where they occur, are natural displays of light in the Earth's sky. Typically, these lights are dimly present at night. However, sometimes, these otherwise faint ...

page 2 from 3