Geosynchronous orbits are vital to a wide array of technology allowing satellites to travel in sync with Earth as it rotates. We explore it in more detail here.
From time to time, our Sun bathes the Earth in massive clouds of charged particles. While life is safe, our electrical grids could be in for some trouble.
One of the most powerful and fascinating forces of nature is born of storms: great cracks of light that part the sky, flicking vast amounts of electricity into the surrounding atmosphere, cracking into the ground whenever it reaches it.