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On July 24, 1969, Apollo 11 splashed down in the Pacific Ocean after a mission duration of 8 days, 3 hours, 18 minutes, and 35 seconds.
The race to the moon was over.
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President Kennedy's challenge had been answered with resounding success.
The greatest technological achievement in human history was, well, history.
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I was reading James Oberg's "Star-Crossed Orbits: Inside the US-Russian Space Alliance" and he mentioned something I had never before considered. The Apollo program gave Russia (and the world) a healthy fear of the technological abilities of the U.S.
In the Introduction, he quotes space scientist Paul Spudis:
"Here's Apollo's legacy: Any technological challenge America undertakes, it can accomplish. The reason this legacy had concurrency was the success of Apollo. We had attempted, and successfully achieved a technical goal - one so difficult and demanding, that it made virtually any similar goal seem equally achievable."
There you have it. America didn't just get a few thousand pounds of moon rocks and some nice pictures for the cover of Life magazine. America got technological credibility with the world, and that's something you can't put a price on.