Updating a model developed during the Voyager flybys will enable better mission planning and a deeper understanding of Juno data.
Journal of Geophysical Research: Space Physics
Capturing Heat-Driven Atmospheric Tides on Mars
Spacecraft observations and model simulations provide new insights into tidal patterns that transport momentum and energy into the planet’s upper atmosphere.
Terrestrial Radio Signals May Suppress High-Energy Electrons
Naval radio signals may cause the formation of a barrier observed during geomagnetic storms that is seemingly impenetrable by relativistic electrons.
Successfully Simulating Atmospheric Gravity Waves
These waves are key to moving energy from the troposphere to the thermosphere, but until now they haven’t been well described at high altitudes in computer models.
First Model of Meteoric Nickel in the Upper Atmosphere
A layer of nickel of cosmic origin, which exists between 80 and 110 km high in Earth’s atmosphere, has been modeled for the first time, including dynamics and complex neutral and ion chemistry.
Upstream Propagating Magnetic Dips in the Magnetosheath
The previous consensus that magnetic dips in the magnetosheath can be attributed to non-propagating mirror waves is now shown to be oversimplified.
Electron Density near Enceladus Shows Orbital Variation
The electron density peaks well after the activity of the moon’s distinctive south polar ice plume reaches its maximum, but the cause of the lag remains puzzling.
New Energetic Neutral Atom Emissions from Jupiter, Io, and Europa
The first Jovian off-equator Energetic Neutral Atom viewings reveal distinct emissions from Jupiter and the orbits of Io and Europa: Energetic particle injections surprisingly occur inside Io’s orbit.
JGR: Space Physics Seeks Submissions on Underrepresented Topics
Under a new editor in chief, the Journal of Geophysical Research: Space Physics is encouraging more scientific papers on space instrumentation, numerical models, and solar physics.
How Mars’s Magnetic Field Let Its Atmosphere Slip Away
A planet’s magnetic field usually protects its atmosphere from being blown away by its star. But new research suggests Mars’s weak magnetic field may have helped its atmosphere escape.