Satellite Photo of the United States at Night - Click on the image for a more detailed view
This map shows the geographic distribution of night time lights in the United States, Canada, Mexico and the Caribbean. Strong lights occur in a strand that includes Washington, DC, Philadelphia, New Jersey, New York City and Boston. Most of the large cities of Canada are located within a couple hundred miles of the United States border. Chicago stands out on the shoreline of Lake Michigan, and other major cities in the central states are connected by a network of highways. On the west coast, Seattle, San Francisco, Los Angeles and San Diego stand out. The coastlines of Florida and Puerto Rico are lined with bright cities. Finally, the cities of Hawaii and oil facilities of the north Alaska coast are also "visible from space." NASA Image. Click to view larger image.