So air travel is today affordable, because most people produce more wealth than twenty years ago.
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Rocketpunk Manifesto: The Price of a Spaceship
Archive for September, 2009
Rocketpunk Manifesto: The Price of a Spaceship
Thursday, September 17th, 2009
Can space travel save the planet? | MNN – Mother Nature Network
Thursday, September 3rd, 2009The spaceships themselves also feature hybrid rocket power and are fuel-efficient. The first ship , funded by Microsoft co-founder Paul Allen and built by Burt Rutan, flew to space three times in 2004.
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Can space travel save the planet? | MNN – Mother Nature Network