Comparing future options for human space flight

Brent Sherwood

doi:10.1016/j.actaastro.2011.04.006

Comparing future options for human space flight

2011-09-01

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Brent Sherwood *

DOI：10.1016/j.actaastro.2011.04.006

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The paper analyzes the value proposition for government-funded human space flight, a vexing question that persistently dogs efforts to justify its $10(10)/year expense in the US. The original Mercury/Gemini/Apollo value proposition is not valid today. Neither was it the value proposition actually promoted by von Braun, which the post-Apollo 80% of human space flight history has persistently attempted to fulfill. Divergent potential objectives for human space flight are captured in four strategic options Explore Mars; accelerate Space Passenger Travel; enable Space Power for Earth; and Settle the Moon-which are then analyzed for their purpose, societal myth, legacy benefits, core needs, and result as measured by the number and type of humans they would fly in space. This simple framework is proposed as a way to support productive dialog with public and other stakeholders, to determine a sustainable value proposition for human space flight. (C) 2011 Elsevier Ltd. All rights reserved.

Keyword:

Human space flight

Exploration

Mars

Moon

Space solar power

Tourism

Passenger travel

Colonization

Myth

Strategy

Comparing future options for human space flight

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