United States

Surveyor 6 was launched on 7 November 1967 and landed in Sinus Medii on 10 November 1967. The mission's objectives were to soft land on the Moon and collect information on the properties of the lunar regolith to prepare for the upcoming Apollo missions. Surveyor 6 carried a television camera (ultimately returning 30,027 images) and an alpha particle backscattering instrument to measure the composition of the lunar regolith in-situ.

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Surveyor 6 on the plains of Sinus Medii