Guaranteed to blow your mind – a time-lapse video shot by International Space Station astronauts flying over the Earth over a period of two months.
Earth | Time Lapse View from Space | Fly Over | Nasa, ISS from Michael König on Vimeo.
(via MetaFilter where they’ve solved what the ribbon of light across a whole continent at 3:47. Pace guessed “a river with a lot of lights on it” which is exactly what someone else on the page guessed – though not the right answer!)