From the 1950s all the way until the early 1970s, NASA was on a mission to send Mankind to Mars and, as such, was considering different forms of propulsion. The most promising was a nuclear-powered rocket. Of course, the plans to go to Mars were shelved around the same time of the last Apollo mission, and Man hasn’t been out past the international space station (to the best of our unclassified knowledge) since. Sure, we’ve sent a number of unmanned probes, but outside of that, we’ve stuck pretty close to home. But, technology has improved drastically over the years, and the phone in your hand is now more powerful than the computers that helped Neil Armstrong and Buzz Aldrin land on the moon while Michael Collins piloted the command module and observed from lunar orbit on July 20, 1969. Now we’ve got guys like Elon Musk pressing the issue and wanting to colonize Mars in the near future, so it’s only fitting that NASA step its game up and prepare for a journey to the red rock.