This is a night view of the Nile River and Delta from the International Space Station.
The Cairo metropolitan area is the very bright area where the river flows into the Delta. The photograph also shows the eastern coastline of the Mediterranean - the Tel-Aviv metropolitan area in Israel and Amman in Jordan. The lights also show the coast line of the Sinai Peninsula and the city lights of the island of Cyprus at the top of the image.
The thin yellow curving band at the top of the image is airglow, a faint band of light emission that results from the interaction of atmospheric atoms and molecules with solar radiation at nearly 100 kilometres above the earth.