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.
radiation
Posted inNews
Thinking Zinc: Mitigating Uranium Exposure on Navajo Land
An innovative clinical trial uses “two-way participation” between Navajo and medical communities to study the impact of zinc on mitigating health effects associated with uranium mining.
Posted inScience Updates
Understanding High-Energy Physics in Earth’s Atmosphere
Thunderstorms present a variety of hazards, including emissions of ionizing radiation. An international group of scientists met at an Armenian observatory to share their findings.
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Podcast: A Nuclear Legacy Buried in Ice
The radioactive remains of nuclear testing during the Cold War and from nuclear disasters like Chernobyl are still with us and can be found in some of the remotest glaciers on Earth.
Posted inEditors' Highlights
Human-made Emissions Modify Electron Space Environment
Very Low Frequency transmitters used for communications with submarines modify the dynamics of energetic electrons in the inner radiation belt and the slot region.
Posted inNews
Bruce Barkstrom (1944–2018)
Bruce R. Barkstrom, principal investigator for NASA missions involved with understanding Earth’s radiation budget, committed his life to analyzing, interpreting, and stewarding Earth science data.
Posted inEditors' Highlights
First Multi-Decade Simulation of the Earth’s Radiation Belt
A new simulation of the Earth’s electron radiation belts captures large-scale variations over nearly three solar cycles, and replicates primary cyclical features and extreme behaviors.
Posted inEditors' Highlights
Catching the Oncoming Radiation Storm
Improved processing enables satellite-based radiation sensors to match ground-based sensors in providing prompt warnings of the onset of atmospheric radiation storms that can endanger civil aviation.
Posted inResearch Spotlights
Increasing Radiation Levels May Challenge Space Exploration
New research shows that solar radiation levels are growing 10% faster than previously believed and that the radiation environment in space will worsen with time.
Posted inEditors' Vox
Earth’s Radiation Belts: Celebrating Six Decades of Discovery
A recent celebration of the 60th anniversary of the launch of Explorer 1 reflected on the incredible progress and scientific insights from this and subsequent space missions.