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

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

Scientists Probe the Calm After Solar Storms

Mark Zastrow, Freelance Writer

From Research Spotlights—In forecasting the effects of solar storms, understanding how they subside—and not just how they arrive—will be crucial. The proverbial calm before the storm may be portentous and dramatic, but in space physics, the calm after the storm is important, too. That’s particularly.... more

Retracing the First Spaceborne Electric Field Measurement

Mark Zastrow, Freelane Writer

From Research Spotlights— 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? On the night of 17 October 1966, as the rays of an aurora danced across northern Norway, the chilly calm was.... more

Buzzing Ice Shelf Makes Waves in the Air Above

Mark Zastrow, Freelance Writer

From Research Spotlights— The resonant vibrations of the Ross Ice Shelf in Antarctica are disturbing the atmosphere above it, creating huge ripples. Earlier this year, scientists reported mysterious waves appearing in the skies above Antarctica. These enormous ripples occur in the stratosphere.... more

Understanding the structure of changes in the Southern Ocean eddy field

Tom Hill, Rice University, Houston, TX

Commentary in JGR-Space Physics Thomsen et al. [2016] provide a new statistical analysis of nearly 8 years of Cassini Plasma Spectrometer data, revealing that hot electrons injected from Saturn's outer magnetosphere penetrate into the inner magnetosphere but only to a distinct inner edge whose location.... more