Russian scientists warn of powerful solar flare activity on Monday
Three solar flares were observed on Sunday, the Fedorov Institute said, with one lasting 14 minutes, accompanied by disruption in radio communication.
The sun emitted its first X-class flare in more than four years on February 14, 2011 at 8:56 p.m. EST.(photo credit: NASA Goddard Space Flight Center/Wikimedia Commons)