A new sediment tracer uses the interactions between radiation, charge, and the Sun to uncover the hidden transport histories of sand grains.
radiation
Posted inNews
UV Radiation Contributed to Earth’s Biggest Mass Extinction
To find the first direct evidence of heightened UV radiation during the end-Permian mass extinction, researchers turned to chemical evidence preserved in pollen grains.
Posted inNews
Massive Stars May Commit Grand Theft Planet
New simulations show that planets around young, massive stars may have been captured or stolen rather than homegrown.
Posted inEditors' Highlights
Life on Mars? Estimating Radiation Risks for Martian Astronauts
New research suggests that to minimize radiation risk for human exploration of Mars, astronauts will need to dig deep for safety.
Posted inEditors' Highlights
El Niño-Southern Oscillation and Radiation Two-Way Coupling
Changes in sea surface temperature during ENSO events and radiation are related, suggesting a two-way coupling between sea surface temperature and radiation in coupled climate variability.
Posted inResearch Spotlights
Juno Detects Jupiter’s Highest-Energy Ions
Trapped ions discovered at midlatitudes can have energies exceeding 100 megaelectron volts per nucleon. Their detection adds to our understanding of the powerful radiation environment around Jupiter.
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Record-Setting Flare Spotted on the Nearest Star to the Sun
Proxima Centauri recently let loose a blast of radiation, and ground- and space-based telescopes detected the record-setting event at wavelengths ranging from radio to the ultraviolet.
Posted inEditors' Highlights
Severe Radiation Storms Pose Health Risk to Air Travel
Simulations of radiation storm fluxes on real flight paths highlight how severe space weather could expose aircrew and passengers on busy transatlantic routes to significant radiation doses.
Posted inNews
Pensando en el Zinc: Mitigando la Exposición al Uranio en la Nación Navajo
En un innovador ensayo clínico se estudia el impacto del zinc en la mitigación de los efectos sobre la salud relacionados con la minería de uranio. Éste se lleva a cabo mediante la “participación bidireccional” entre los Navajos y las comunidades médicas.
Posted inEditors' Highlights
The Importance of Solar Lyman-alpha Emissions for Space Weather
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.