Japan’s Arase Satellite Finds Killer Electrons Were Accelerated Inside Earth’s “Impenetrable” Radiation Barrier

Nature World News | 03.11.2026 17:48
High-energy electrons that scientists believed could not get inside a sharp boundary in Earth's radiation belts were instead created there during the May 2024 solar superstorm, according to a new study in Geophysical Research Letters. Data from Japan's Arase satellite show the electrons were accelerated locally rather than pushed in from the outer belt.