LOS ANGELES, May 15 (Xinhua) -- A powerful solar flare erupted from the sun on Wednesday, triggering severe radio blackouts across vast regions on Earth, the U.S. National Oceanic and Atmospheric Administration (NOAA) confirmed on Thursday.
The flare, classified as an X2.7 event, was observed at 4:25 a.m. Wednesday Eastern Time. According to NOAA, solar flares of this intensity are relatively rare.
