Atmospheric radiation is near a 5-year high. This plot shows a 15% increase since the monitoring program began in 2015: What’s happening up there? The answer is “Solar Minimum.” During the nadir of the 11-year solar cycle, the sun’s magnetic field weakens, allowing extra cosmic rays from deep space to penetrate the solar system. These … Continue reading Solar Minimum increases atmospheric radiation by +15%, reaching a 5-year high!