The dress rehearsal for landing the first astronauts on the Moon
#OTD in 1969, Apollo 10 astronauts Tom Stafford, Gene Cernan, and John Young launched to the Moon. The crew rehearsed all aspects of a lunar landing mission, except for the landing. https://go.nasa.gov/4542N0K
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50 Years Ago: Apollo 10 to Sort Out the Unknowns
As Commander Thomas P. Stafford stated during a preflight press conference, Apollo 10 was planned to “sort out all the unknowns” to make the Moon landing possible.Kelli Mars (NASA)