Tag Archives: aurora

Storm-chasing Spacecraft

A U-led experiment flies on a NASA mission to Earth’s radiation belts

The story goes that when Earth’s Van Allen Radiation Belts were first discovered, scientists were so amazed by the intensity of radiation, they thought they’d stumbled onto a Soviet nuclear test.

But they soon discovered that Earth is girdled by two concentric, doughnut-shaped regions of space, churning with radiation from protons, electrons, and other charged subatomic particles trapped in Earth’s magnetic field. (more…)

Read More

Long-sought Connection Found Between Saturn’s Aurora and Puzzling Radio Pulses

WASHINGTON —The ethereal ultraviolet glow, or aurora, that illuminates Saturn’s upper atmosphere near the planet’s poles is pulsing, recent observations show. What’s more, the glow waxes and wanes in conjunction with perplexing radio emissions that also emanate from the ringed planet.

(more…)

Read More