August 10, 2011
On August 9, 2011 at 3:48 a.m. EDT, the sun emitted an Earth-directed X6.9 flare, as measured by the NOAA GOES satellite.
This was the largest flare of the current solar cycle, an R3 (Strong) Radio Blackout, alternatively classified as an X6, according to the U.S. NOAA Space Weather Prediction Center.
These gigantic bursts of radiation can disrupt GPS and communications signals. In this case, scientists… read more