Before revision: "LOW EARTH ORBIT RENDEZVOUS STRATEGY FOR LUNAR MISSIONS" URL It was considered and ultimately rejected in favor of lunar orbit rendezvous (LOR) for NASA's Apollo Program of the 1960s and 1970s .
After revision: , mainly because LOR only requires one rocket launch and allow the design of a lightweight lunar module independently from the main spacecraft"LOW EARTH ORBIT RENDEZVOUS STRATEGY FOR LUNAR MISSIONS" URL It was considered and ultimately rejected in favor of lunar orbit rendezvous (LOR) for NASA's Apollo Program of the 1960s and 1970s .