What was the title of Galileo's 1610 treatise providing visual evidence of lunar mountains and valleys?
Answer
Sidereus Nuncius
Galileo Galilei compiled and published his groundbreaking observations detailing the rugged, imperfect surface of the Moon, including mountains and depressions, in a specific publication. This work, which offered concrete visual proof contradicting centuries of astronomical consensus, was titled *Sidereus Nuncius*, which translates to Starry Messenger. The publication date for this treatise was 1610, and it served as the primary vehicle for disseminating the revolutionary findings that the Moon was a physical world bearing geological scars, much like the Earth.
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