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![Figure 3.—Photograph of the Earth, taken by geologist/astronaut Harrison H. (Jack) Schmitt in December 1972 during the Apollo 17 mission to the Moon. National Aeronautics and Space Administration (NASA) photograph no. 72-HC-928, courtesy of NASA Public Information Office, Washington, D.C.](images/gallery-1/large/pp1386a1-fig03.jpg)
Figure 3. Photograph of the Earth, taken by geologist/astronaut Harrison H. (Jack) Schmitt in December 1972 during the Apollo 17 mission to the Moon. National Aeronautics and Space Administration (NASA) photograph no. 72-HC-928, courtesy of NASA Public Information Office, Washington, D.C. |