False Color image of Solar Eruption.
Well, yes, it's a solar storm, and yes, it is hitting the Earth, so I call it an attack just for the effect. But the fact is, this Solar Flare that is hitting the Earth and causing fantastic Polar Lights could just as well cause interference in satellite communications. These disruptions could affect GPS navigation systems, high-flying aircraft travel, power grid transmission lines, and radio signals. Listen to news updates for anything serious though.
This all stems from what's called a CME, or "Coronal Mass Ejection" that occurred on the Sun yesterday and has begun hitting the Earth's magnetic field.
You can get detailed information on the best site I know for tracking this storm, SpaceWeather, at: http://www.spaceweather.com/