Anatomy of a Solar Storm

[chattanova]

The worst solar-storm season in half a century starts this year. These fiery explosions—which unleash as much energy as a billion hydrogen bombs—could, under the right conditions, black out cities and fry satellites. But new solar scopes can give us advance warning

http://www.popsci.com/popsci/aviationspace/7250d257d5ed2110vgnvcm1000004eecbccdrcrd.html