A powerful X1.8 solar flare erupted on January 4, 2025, and was recorded at its peak—7:48 a.m. ET—by NOAA’s Solar Ultraviolet Imager (SUVI). Such intense flares have the potential to disrupt Earth’s radio communications, navigation systems, and power grids, while also endangering astronauts and spacecraft in orbit. NASA’s Solar Dynamics Observatory data is currently inaccessible […]