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NasaSpaceFlight.com - VSE: Less steroids or less Apollo
Once characterized as “Apollo on steroids” by NASA administrator Mike Griffin, the architecture surrounding the ESAS (Exploration Systems Architecture Study) has grown too heavy for its launch vehicles.

According to NASA internal review documents obtained by NASASpaceFlight.com, the architecture may be sheared of much of its “steroid” capability, or be replaced by a radically different kind of lunar exploration technique - based around rendezvous thousands of kilometers above the farside of the Moon.