Figure 10-6: R I V U X G
Details of Mare Tranquillitatis This color photograph from lunar orbit reveals numerous tiny craters in the surface of a typical mare. The curving “river,” or rille, was carved out by flowing lava that later solidified; similar features are found in volcanic areas on Earth. The Apollo 11 landing site is near the center of the top edge of this image.
Details of Mare Tranquillitatis This color photograph from lunar orbit reveals numerous tiny craters in the surface of a typical mare. The curving “river,” or rille, was carved out by flowing lava that later solidified; similar features are found in volcanic areas on Earth. The Apollo 11 landing site is near the center of the top edge of this image.
(Apollo 10, NASA)