Long before a human ever sets foot on the Red Planet, we already know how harsh the environment is. Once a human finally does, the only things protecting them from that environment will be the infrastructure we’ve built there and the spacesuit that keeps them in a protective bubble. Unfortunately, modern spacesuits aren’t built with Martian gravity, which is three-eighths of Earth’s, in mind. To prove that point, a team of NASA and industry engineers made a presentation at the 55th International Conference on Environmental Systems (ICES) showing that the newest generation of spacesuits is simply too heavy to use on Mars.