Excerpt
The U.S. human spaceflight program appears to be on an unsustainable trajectory. It is perpetuating the perilous practice of pursuing goals that do not match allocated resources. Space operations are among the most demanding and unforgiving pursuits ever undertaken by humans. It really is rocket science. Space operations become all the more difficult when means do not match aspirations. Such is the case today. The Nation is facing important decisions on the future of human spaceflight. Will we leave the close proximity of low Earth orbit, where astronauts have circled since 1972, and explore the solar system, cha…
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