Aspace transportation architecture for the future

摘要

this paper summarizes the results of recent studies by Orbital to significantly reduce NASA's future launch costs and improve crew safety through the implementation of a low-risk, evolutionary space transportation architecture. These studies were performed as a part of NASA's Space Transportation Architecture Studies (STAS). The STA studies were commissioned by NASA Headquarters to advise NASA and the Executive Office of the President on the future direction of U.S space transportation.