Exactly, what is believable space travel before the space race should be different to what’s believable space travel at the end of life of the international space station. Even beyond what the experts know, now we know more too. In the 60s it would make perfect sense for people to bring orienteering gear onto a new planet, but now it would be ridiculous to not have exploratory vessels have the ability to set up a temporary gps with satellite drones. GPS is an everyday thing that just makes sense to people today.