Phoenis, Az NASA Photo Square Sticker

Several Arizona cities and suburbs merge in a distinctive Western U.S. grid pattern. Like many large urban areas of the central and western United States, the Phoenix metropolitan area of Arizona is laid out along a regular grid of city blocks and streets. While visible during the day, this grid is most evident at night, when the pattern of street lighting is clearly visible from the low-Earth orbit vantage point of the International Space Station. Image of the Day for April 1, 2013 Instrument: ISS — Digital Camera Appears in these Collections: Astronaut Photography Earth at Night NASA