As NASA prepared for the first lunar landings, it had a wealth of information from three robotic probe programs scarcely remembered today. The Ranger, Surveyor, and Lunar Orbiter programs helped answer NASA's basic questions, including whether the lunar dust would even be able to support the weight of a crewed spacecraft. Conducted in the competitive atmosphere of the space race with the Soviets, these programs came and went in a brief span of time, but hugely increased our knowledge of the Moon. Note: This feature show will be repeated in Spring 2019.
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