the lessons learned from apollo. the tragedies, and the triumphs. >> from the base here, at the eagle has landed. >> as it aims for a permanent return to the moon. >> rocket tranquility, we copy you on the ground. you have a lot of guys about to turn blue, we're breathing again, thanks a lot. >> a lot changed since july 1969 when this mission control room put neil armstrong, and buzz aldrin, on the moon. back then, it was about human exploration. innovation, technology. learning what is beyond the earth. 50 plus years later, it is, also, about a strategic, a national security imperative. >> and again tomorrow, geostrategic's chess game, playing out 200 miles above earth. where one wrong move, can take out an entire constellation of satellites, upon which, the global economy, and our gps system, depends.