Beyond Apollo Posts on Piloted Mars (And Other Places) Flybys

The piloted Mars flyby concept was first articulated in detail in 1956 by Italian rocketry pioneer Gaetano Crocco. NASA work on the concept began in 1962, and the space agency devoted as much study effort in the 1960s to piloted ...

Source: http://www.wired.com/wiredscience/2013/02/beyond-apollo-piloted-mars-and-other-places-flyby-posts/

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