Scientists have observed a significant increase in solar flare activity over the past 48 hours, with multiple moderate to strong events erupting from the sun. This surge in solar output has implications for global technology, particularly satellite communications and navigation systems like GPS, which experienced interference in 2006 due to solar radio bursts. Energetic particles and radiation from these flares can disrupt satellite operations, leading to data transmission issues and potential signal loss.
Coronal Mass Ejections (CMEs), often accompanying solar flares, can induce powerful currents in Earth's magnetic field, potentially damaging power grids. The 1989 solar storm, for instance, caused a nine-hour power outage in Quebec, affecting millions. Experts warn that a severe event, comparable to the 1859 Carrington Event, could result in widespread, long-lasting blackouts with substantial economic consequences. For astronauts, increased exposure to harmful radiation is a concern, necessitating enhanced shielding and early warning systems for future lunar and Martian missions. Studies indicate radiation doses above 700 milligray can cause sickness, while exceeding 10 gray could be fatal. NASA is developing strategies, including using storage as makeshift radiation shelters for lunar missions. Space weather agencies like NOAA's Space Weather Prediction Center (SWPC) monitor these events and issue advisories. New research suggests that variations in ultraviolet light from coronal loops could provide a 2-6 hour warning for solar flares with 60-80% accuracy, crucial for safeguarding our technological reliance on space and ensuring astronaut safety.