Lyman-alpha emissions convey a major part of the solar-flare photon energy reaching Earth and play a significant role in flare-driven enhancements of ionospheric conductivity.Read More »Natural Hazards
Heliospheric imaging data can be used in ensemble modeling of CME arrival time at Earth to improve space weather forecasts, treating the solar wind as a 1-D incompressible hydrodynamic flow. Read More »Atmospheric Sciences
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.Read More »Space Science & Space Physics
NASA’s Juno spacecraft is “hearing whistles” all over the place on Jupiter, a type of natural plasma waves called whistlers that are sometimes associated with atmospheric lightning.Read More »Space Science & Space Physics
An international armada of orbiting satellites and ground VLF network join forces to form a “magnetosphere-ionosphere observatory” to size up electromagnetic ion cyclotron waves in the magnetosphere.Read More »Atmospheric Sciences
A NASA mission is observing airglow in the upper atmosphere and uncovering what it tells us about Earth’s space weather system.Read More »Space Science & Space Physics
The previous consensus that magnetic dips in the magnetosheath can be attributed to non-propagating mirror waves is now shown to be oversimplified.Read More »Space Science & Space Physics
The path of a solar eclipse through Earth’s ionosphere, which can be quite different than it is at ground level, appears to explain patterns of ionized particle depletions.Read More »Space Science & Space Physics
Using the Borexino particle detector—located deep underground in Italy—researchers spot elusive neutrinos from the Sun’s CNO cycle.Read More »Natural Hazards
Omega-band aurora carries fast propagating electric currents in the azimuthal direction, producing geomagnetically induced currents that can cause power outage on the ground beneath.Read More »
