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Every named spaceflight program and individual mission this atlas records, crewed and robotic, grouped by target body and program family: crewed lunar programs, early crewed spaceflight milestones, space station and shuttle programs, and robotic exploration of the Moon, Mars, Venus and the outer solar system and small bodies, plus early uncrewed satellite and reconnaissance programs. This category excludes the spacecraft that flew a mission and the agency that ran it, each its own category linked back by relationship.
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1. Wikipedia: Sputnik 1
Wikimedia FoundationSputnik 1, lead sectionQuote, Sputnik 1, lead section
It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program.
View the Source NASA History Office
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