offworld colonies

Space transfer concepts and analysis for exploration missions. Implementation plan and element description document. Volume 1: Major trades. Book 1: Draft final Abstract: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930013159_1993013159.pdf Space transfer concepts and analysis for...

Advanced Transportation System Studies Technical Area 2(TA-2): Heavy Lift Launch Vehicle Development. Executive Summary; Volume 1 prepared by Lockheed Martin Missiles & Space Company for the Launch Systems Concepts Office of the George C. Marshall Space Fllight Center, July 1995. Abstract...

PARSECS stands for "Program for Astronomical Research and Scientific Experiments Concerning Space". It was a major effort by Boeing starting from the late 1957 to at least 1960 under the Model 854, 855 and 856 designations. Boeing envisioned, with input from preminent scientists and astronomers...

Most, although by no means all, pre-Apollo concepts for manned lunar flights depended on assembly or at least refueling in LEO. It's my understanding that a reason for dropping this approach was that it could not be done in time to satisfy Apollo's before-this-decade-is-out deadline. Probably...

http://history.nasa.gov/SP-4221/ch4.htm One alternative, at $3.5 billion per year, eliminated NERVA and stopped production of Saturn V and Apollo spacecraft. This option, however, would maintain a vigorous program in piloted flight, featuring Skylab with three visits as well as six additional...