Browse Journal Highlights

Highlights include enriched and related content of notable journal articles presented on Eos org AGU org AGU On Demand and in AGU journals

Untangling Uranus’s topsy-turvy magnetosphere

BLOG— New observations of Uranus being buffeted by shock waves from the sun have revealed auroral activity and fresh clues to the workings of the seventh planet’s unusual magnetosphere, the region of space dominated by its magnetic field. Mapping out the magnetospheres of planets like Earth, Jupiter.... more

Birkeland Current Boundary Flows

Editors’ Highlight— This study summarizes a statistical finding of significant velocity jets, known as Birkeland Current Boundary Flows, seen in SWARM satellite data in the northern hemisphere. The orbit configuration of SWARM allowed unique separation of spatial and temporal effects. The authors found.... more

Explaining Unexpected Twists in the Sun’s Magnetic Field

Mark Zastrow, Freelance Writer

From Research Spotlights— New research shows how the Sun’s magnetic field can shift when it approaches Earth, which can throw off space weather forecasts. Space weather forecasting requires understanding what happens when the Earth’s magnetic field meets the Sun’s. When their field lines touch,.... more

Survey of Voyager Plasma Science Ions at Jupiter: I Analysis Method

Editors’ Highlight— In our field, so much emphasis is put on the spectacular and ground-breaking, and not the fundamental work of producing high quality measurements with documentation and access to the wider community. The authors of this paper found an old data set from the Planetary Data System (NASA's.... more

Calculating Plasma Waves—With a Twist

Mark Zastrow, Freelance Writer

From Research Spotlights—What happens when two plasmas with different temperatures overlap? The answer depends on a quantum effect that twists the waves as they ripple through the sea of electrons. In our daily lives, fluids that have different temperatures mix in a straightforward manner..... more

Relativistic electrons uncovered with NASA’s Van Allen Probes

Blog—Earth’s radiation belts, two doughnut-shaped regions of charged particles encircling our planet, were discovered over fifty years ago, but their behavior is still not completely understood. Now, new observations from NASA’s Van Allen Probes mission shows that the fastest, most energetic electrons.... more

After Decades, High-Altitude Observations Revived at Jicamarca

Mark Zastrow, Freelance Writer

From Research Spotlights—Recent upgrades to the Jicamarca Radio Observatory in Peru allow it to probe electron densities several thousand kilometers above Earth, a feat it hasn't accomplished in 50 years. When the Jicamarca Radio Observatory made its first observations of Earth's ionosphere.... more

How Lightning Creates "Killer Electrons" in Earth's Radiation Belts

Mark Zastrow, Freelance Writer

From Research Spotlights—New calculations show that lightning-triggered plasma waves in Earth's magnetosphere absorb energy from slow particles and energize electrons to levels that can damage satellites severely. The Van Allen radiation belts are the most dangerous regions in near-Earth space,.... more