Researchers discover source of super-fast electron ‘rain’: The downpours, which can affect satellites and space travel, are caused by electromagnetic whistler waves, scientists say
UCLA scientists have discovered a new source of super-fast, energetic electrons raining down on Earth, a phenomenon that contributes to the colorful aurora borealis but also poses hazards to satellites, spacecraft and astronauts. The researchers observed unexpected, rapid “electron precipitation” from low-Earth orbit using the ELFIN mission, a pair of tiny satellites built and operated […]