Caption: The Earth from Apollo 17, 1972 Dec07. This image is called The Blue Marble.

One of the few images showing a full planetary phase Earth. Blue oceans (Atlantic Ocean, Antarctic Ocean (AKA Southern Ocean), Indian Ocean), seas (Arabian Sea, Dead Sea, Mediterranean Sea, Persian Gulf, Red Sea). White clouds and anticyclones (just guessing). To the south: Antarctica, Africa, Madagascar. At the northern edge Eurasia: the Arabian Peninsula, China, Egypt. Europe, Greece, India, Iraq, Israel, Somewhere above the center in Africa is Olduvai Gorge.

Credit/Permission: NASA, NASA: Image #EL-1996-00155, 1972 / Public domain.
Download sites: NASA: Image #EL-1996-00155, Wikimedia Commons: NASA: Image #EL-1996-00155.
Image link: Itself.
Local file: local link: earth_blue_marble.html.
File: Earth file: earth_blue_marble.html.