As an officer in the U. S. Air Force, Kittinger was involved in very high-altitude research that helped pave the way for manned space travel.

作为一个在美国空军军官，基廷格是非常高的海拔参与研究，帮助铺平了道路载人太空旅行。

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Manned space travel has been one of the greatest triumphs in the history of the United States.

FORBES: NASA Needs A Mission

Next up, things get a bit animated with Packing for Mars author Mary Roach, who will discuss the grosser side of manned space travel, while professional prognosticator (and sometimes rock musician) John Roderick kicks off his new reoccurring segment by explaining how space exploration helps him get out of bed in the morning.

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