Some train track circuits are at the mercy of distant storms on the Sun’s surface, researchers found, which could cause train signals to jump from red to green and vice versa as a result of extreme space weather.
That massive ball of hot gas at the center of our solar system is responsible for keeping our planet nice and balmy, but its also the source of some huge astronomical disruptions. Earlier this week, two enormous solar flares erupted from the Sun, knocking out radio signals across the U.S.