The Surveyor 1 reference article from the English Wikipedia on 24-Apr-2004
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Surveyor 1

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Surveyor 1 was the first lunar lander in the American Surveyor program that explored the Moon.

A total 11,237 images were transmitted to Earth.

The successful soft landing (first ever by the U.S. on an extraterrestrial body) was in the Ocean of Storms. The spacecraft found a layer of about one inch of dust around itself.