linkedin post 2014-06-27 08:43:06

REALITY CHECK: AIR TRAVEL IS NEW. “Space settlement needs inexpensive, safe launch systems to deliver thousands, perhaps millions, of people into orbit. If this seems unrealistic, note that a hundred and fifty years ago nobody had ever flown in an airplane, but today nearly 500 million people fly each year.”

http://settlement.arc.nasa.gov/Basics/wwwwh.html

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