A rapidly expanding sunspot has transformed the Sun into a solar flare powerhouse, producing more than 20 mid-level flares and several extreme eruptions in just one day. As the region now faces Earth, scientists are tracking potential radio blackouts, satellite interference, and dazzling auroras caused by incoming solar storms.​A rapidly expanding sunspot has transformed the Sun into a solar flare powerhouse, producing more than 20 mid-level flares and several extreme eruptions in just one day. As the region now faces Earth, scientists are tracking potential radio blackouts, satellite interference, and dazzling auroras caused by incoming solar storms.  ​ science