"Why Explore Space? A 1970 Letter to a Nun in Africa" http://myscienceacademy.org/2012/08/13/why-explore-space-a-1970-letter-to-a-nun-in-africa/ http://myscien

"Why Explore Space? A 1970 Letter to a Nun in Africa" http://myscienceacademy.org/2012/08/13/why-explore-space-a-1970-letter-to-a-nun-in-africa/ http://myscienceacademy.org/2012/08/13/why-explore-space-a-1... NASA Associate director Dr. Ernst Stuhlinger elaborates on this topic.