Astronaut Chris Hadfield, currently on board International Space Station as Commander of Expedition 35, observed a difference in Berlin lighting at night:
Berlin at night. Amazingly, I think the light bulbs still show the East/West division from orbit.
Christian Fritzkowski (artistic name?) explains: “East Berlin (more yellow on the right) uses more lamps driven by sodium gas, west Berlin (more blue/white on the left) halides.”
