Evans, a pioneer of auroral physics, changed the way scientists thought about the aurora and magnetic fields and guided a new generation of researchers.
Low-latitude sightings of colorful hues in the sky likely to have been auroras indicate powerful geomagnetic storms buffeted Earth when some old chronicles were written, researchers report.
A new study suggests that poleward boundary intensifications in the aurora are caused by fast flows of plasma from the poles into the auroral oval.
Fifty years ago, a sounding rocket made history by taking the first measurement of an electric field in space. What techniques were used to capture this data?
New research suggests that Jupiter's magnetic field replenishes its stock of plasma during lulls in solar activity, creating spectacular displays when a solar storm hits.
Seventy-five years ago next week, a massive geomagnetic storm disrupted electrical power, interrupted radio broadcasts, and illuminated the night sky in a World War II battle theater.
Citizen scientists share real-time auroral sightings to advance research.
Scientists get their best glimpse yet of the shimmering phenomena on one of Jupiter's most intriguing moons.
Mysterious plasma waves from space are generating displays of aurora near Earth's poles.
The aurora crowning Jupiter's poles—the most powerful in the solar system—flares up when plasma is injected into its magnetic field.