关于这张图
STS039-151-193 (28 April-6 May 1991) --- The Strait of Gibraltar, the only outlet for the Mediterranean Sea, was photographed with a large format handheld camera by the STS-39 crew members. Scientists site evidence in Shuttle photography that the Mediterranean Sea dried up a number of times between 5 million and 20 million years ago. Sea levels, they say, dropped slightly, cutting off the Mediterranean (top right) from the Atlantic Ocean (bottom). In southern Spain, the dark area near the coast is the delta of the Guadalquivir River with the city of Seville. The Sierra Nevada range still has s…
