NASA's latest mission to Mars has uncovered the origins of fast-moving streams of particles high above the planet, flowing against the solar wind.
Journal of Geophysical Research: Space Physics
Ionospheric Waves Linked to Polar Atmospheric Dynamics
Ionospheric waves are likely to be caused by processes in the polar atmosphere rather than by space weather.
Hubble Gazes at Europa's Aurora
Scientists get their best glimpse yet of the shimmering phenomena on one of Jupiter's most intriguing moons.
Are Earthquakes Predictable?
Researchers have been searching for precursory warning signals for decades with little success.
Half of Atmospheric Joule Heating Is Due to Small Oscillations
Scientists use sounding rockets to show that small oscillations in electric fields can be just as important for atmospheric Joule heating as the presence of the electric field itself.
New Solar Wind Model Could Improve Space Weather Forecasts
Real-world data drive a simulation that successfully predicts Sun structures and interplanetary solar wind dynamics.
Magnetic Field Pulsations and Aurora Tightly Linked
Mysterious plasma waves from space are generating displays of aurora near Earth's poles.
Cassini Observes First Evidence of Saturn's Ionospheric Outflow
Evidence shows the ionosphere may contribute as much mass as the moon Enceladus.
Satellites Test Theory of Magnetic Reconnection
A quartet of satellites flying through Earth's magnetic field measures its interaction with the Sun's and puts a theory about their reconnection to the test.
How Saturn Alters the Ionosphere of Titan
New research shows that Saturn's powerful magnetic field changes the atmospheric chemistry of its largest moon, Titan.