What I learned in space: a space shuttle commander's view

Article Abstract:

There have been lots of accomplishments in human space flight that have brought various challenges and experiences to astronauts and the whole aerospace sector but there will be more opportunities to expect in the future. Space tourism is one possibility as the cost of space flight is becoming lower.

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Business and government in space: a new century needs a new appraisal

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Space development in the 21st century needs to strike a balance between NASA, private industry and Congress to come up with well-focused programs that will open space to commercial development. An important consideration is a vigorous and independent national space program.

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Space transportation using tethers

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Space elevators or tethers can help to overcome the enormous expense associated with conventional launch costs. By providing cheap access to space, tethers can spur the development of colonies in space.

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