A satellite imagery of India on Diwali night released by NASA. Photo: PTI
This NASA image from a composite assembled from data acquired by the Suomi NPP satellite in April and October 2012 shows the United States at night. Photo: AP
This image provided by NASA shows the eastern seaboard of the United States of America at night as Hurricane Sandy came ashore on Oct. 30, 2012. Photo: AP
In this image provided by NASA, the Nile River valley and delta are seen at night. Photo: AP
It took 312 orbits to get a clear shot of every parcel of Earth's land surface and islands at night. Photo: AP
This NASA image from a composite assembled from data acquired by the Suomi NPP satellite in April and October 2012 shows the city lights of earth at night. Photo: AP