Saturn

Any of a series of space launch vehicles developed by the U.S. beginning in 1958 for the Apollo Moon-landing program. Saturn I, the first U.S. rocket specifically developed for spaceflight (first fired 1961), was a two-stage vehicle that placed unmanned versions of Apollo spacecraft and other satellites into Earth orbit. An upgraded version, Saturn IB, was used for unmanned and manned Apollo Earth-orbital missions and for ferrying crews to the Skylab space station. The three-stage Saturn V, the largest launch vehicle ever built by the U.S., was used for manned Apollo lunar flights and to launch Skylab.

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