U.S. Department of Defense no topic Update
U.S. Department of Defense sent this bulletin at 06/19/2013 08:12 AM EDT
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06/19/2013 06:57 AM CDT
During one 24-hour period this past Mother’s Day weekend, three of the strongest flares in an extraordinarily active year for solar activity lit the far side of the sun. All three were X-class solar flares, the strongest the sun can send into the atmosphere. An X-class solar flare is the strongest type of solar flare, [...]