Tuesday, August 09, 2011

Biggest Slar Flare in 4 years -- X-7

The Aug 9, 2011 eruption on the Sun that produced a X-7 class flare caused a temporary blackout of high frequency radio transmissions on the side of Earth covered in daylight. Navigation signals can be degraded in these instances. Credit: NASA/SDO/SOHO/Music: John Serrie