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Apollo 17, geologic exercise, Tonopah Nevada, John Young, Charles Duke, Grover vehicle, USGS Astrogeology, NASA photo, ThrowBackThursday, Project Apollo, black and white
Public Domain
Apollo 17, geologic exercise, Tonopah Nevada, John Young, Charles Duke, Grover vehicle, USGS Astrogeology, NASA photo, ThrowBackThursday, Project Apollo, black and white
Public Domain
