Via Tom Chivers at the Telegraph blog. [Video courtesy of the Image Science & Analysis Laboratory, NASA Johnson Space Center]
This video was taken by the crew of Expedition 29 on board the International Space Station. The sequence of shots was taken October 18, 2011 from 07:09:06 to 07:27:42 GMT, on a pass from just south of Alaska to eastern Cuba. The camera used for this imagery was north-facing, so the Aurora Borealis stay visible throughout the video. Lights from southern Canada show up before passing into central North America. Through the clouds, the peninsula of Michigan can be seen, with Chicago brightly lit at the south end of Lake Michigan. A few lightning storms can be seen in the large cloud mass over the Central United States. Finally, many large cities can be seen on the East Coast of the United States, including Atlanta, Georgia. Near the end of the video, the eastern half of the Florida peninsula can be seen, as well as the lighter shallow waters of the Bahamas.
More stunning Earth observation videos from the International Space Station here.