I hope all of your affairs are in order, and you've read our guide of what to expect when a solar storm hits the Earth. Because that's exactly what is going to happen today: a geomagnetic storm will hit our planet.
The storm, called a coronal mass ejection, is actually part of the outer layer of the sun (also known as the corona). It got blown off by a solar flare, and it should be with us Earthlings all day.
Cheap ledes aside, there's nothing to fear: the storm poses no thread other than being slightly problematic for high-latitude power systems and high-frequency radios.
What it does bring, though, is beautiful auroras that can bee seen in northern Europe and the United States-Canada border this evening. The best view, apparently, is from Siberia.
So tonight, if you're out celebrating Bastille Day, make sure to take a moment and look up for a light show to remember.