The Proba-2 Caught pictures of a Solar Flare last week has it headed for and hit earth. The sun has been quite over the last couple of years, and this was the largest Coronal Mass Ejection in three years. No damage was reported, but it did cause and extraordinary Aurora at the poles. CME's and Solar Storms are two of the little thought about events that could actually end the world as we know it. Whenever there is some kind of reporting or commentary it's fairly common to forget about Solar Storms. The threat is real, and actually more likely than something like an Asteroid hit. The effects of a major Solar Storm range from, like what happened to last week, Spectacular Auroras to the evaporation of the Earths Atmosphere. The primary threat of a Solar Storm is EM interference like EMP can damage and destroy electrical components. Over the years there have been major blackouts caused, mostly in the northern hemisphere, by fluctuating magnetic fields. A very large storm has been predicted to occur within the next 3-5 years. There are may unknowns but it has the potential to plunge the whole world into Darkness.
I'm not a big time survivalist, I don't spend my days worrying about the end of the world. If you have to worry, worry about this. More so than Niribu, CERN black holes, or some Ancient Mayan Curse; Sun Storms are real, and we're due.