Lunar orbit rendezvous
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Lunar orbit rendezvous is a process for landing humans on the Moon and returning them to Earth. It was utilized for the Apollo program missions in the 1960s and 1970s. In a LOR mission, a main spacecr
Apollo 11 Lunar Module Eagle rendezvousing with Command module Columbia in lunar orbit
John Houbolt explains Lunar orbit rendezvous
An early planned trajectory of Artemis III, which has since changed to a 2027 Low Earth orbit mission, illustrates the use of LOR
John Houbolt
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John Cornelius Houbolt was an aerospace engineer credited with leading the team behind the lunar orbit rendezvous mission mode, a concept that was used to successfully land humans on the Moon and retu
Lunar orbit rendezvous
…for the return to Earth. This method was brought to the attention of NASA Associate Administrator Robert Seamans by Langley Research Center engineer John C. Houbolt, who led a team to develop it. Besides requiring less payload, the ability to use a lunar lander designed just for that purpose was another advantage…
LOR explained by Houbolt