When former NASA astronaut John Grunsfeld was in elementary school, America was racing Soviet Russia to the moon.
Today, the U.S. is launching astronauts into orbit on Russian rockets, and the U.S. space shuttle program is a thing of the past.
http://recode.net/2015/03/16/why-nasas-betting-spacex-can-help-reinvent-the-shuttle-program-qa/
Brian By Experience 