This moonlit panorama was shot by astronauts on the International Space Station as they looked west from a point over Nebraska.
The wide-angle lens shows a huge swath of the western United States from Phoenix, Arizona, to Portland, Oregon.
The largest string of lights in the foreground is the Ogden-Salt Lake City-Provo area of Utah. The Los Angeles and San Francisco metropolitan regions, as well as the cities of the central valley of California (Bakersfield to Redding) stretch across the horizon.
A green airglow layer appears over the horizon in night images.