Sunita Williams, an astronaut, took photos of the Earth at night from the International Space Station. The photos show the patterns of lights across continents as night falls in different regions. Major cities like Paris, Barcelona, London, and Madrid are visible in Europe. The photos also capture the lights of cities in Brazil like São Paulo and Rio de Janeiro, and in the United States like Boston, New York, and Washington D.C. The document urges sharing the photos widely so future generations can appreciate the spectacular views of Earth at night from space.