Coronal Mass Ejection (CME)

See the following -

NASA: Earth Just Dodged Comms-Killing Solar Blast In 2012

Iain Thomson | The Register | March 19, 2014

The Register, March 19, 2014-A new analysis of data from NASA's Solar TErrestrial RElations Observatory (STEREO) by Chinese and Berkeley helioboffins shows that a July 2012 solar storm of unprecedented size would have wiped out global electronic systems if it had occurred just nine days earlier.

Read More »