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Perspectives on the Past Forty Years of Human Spaceflight
Perspectives on the Next Forty Years of Human Spaceflight
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Administrator aerospace Air Force Alan Shepard Aldrin American Apollo 12 Apollo program asked believe booster build Buzz Aldrin Center century challenges civilization Coalwood cost crew deep space deep-space Earth orbit energy engineering environment ethical expeditions experience flight forty frontier future Garvin Goldin Greatness—Homer happened Hickam Homer Hickam human exploration human space human spaceflight Institute International Space Station interplanetary Kennedy looking low-Earth orbit lunar Mars Medal microgravity mission module Moon NASA NASA History NASA Image NASA's National nuclear opportunity payload planet political possible President problems propulsion religion Robert Zubrin robotic Rocket Boys Russian safe safety scientific scientists Siddiqi social movement society solar system Soviet Union space exploration space program space race Space Shuttle space travel spacecraft Spaceflight Revolution Spaceflight—Laurie Zoloth Sputnik test pilot things Tyson University vision William Sims Bainbridge York Yuri Gagarin Zubrin