Space Storms Pose Threat to Train Safety by Disrupting Signals
Recent research highlights the vulnerability of train systems to space weather, which can disrupt critical safety equipment. According to Cameron Patterson from Lancaster University, solar storms can induce unexpected currents in railway tracks, potentially causing red signals to turn green, leading to fatal train accidents. This phenomenon occurs when the sun emits charged particles during solar storms, affecting Earth's magnetic field and, consequently, electrical systems on the ground. The risk is particularly significant for railway systems that rely on direct currents to detect train presence. Historical instances, such as a 1982 incident in Sweden, have shown signals switching due to geomagnetically induced currents. While the probability of such events is low, with significant solar storms occurring approximately once every 30 years, the potential consequences necessitate preparedness. 
