@blacklight My Dad was one of these men. I thank you for what you wrote. He, and his buddies at JPL were brilliant and deserve the accolades. What WE need to do as their descendants is save the planet with smart minds and tight programming to cool oceans and scrub the atmosphere. My Dad went on to teach climate sci and help invent neural networks. We had so much HOPE and he believed he was saving the planet. I wish he had been able to.