Long before a human ever sets foot on the Red Planet, we already know how hard the environment is. Once one finally does, the only things protecting them from that harsh environment will be the infrastructure weve built up there, and the spacesuit that keeps that in a protective bubble. Unfortunately, modern space suits arent built with Martian gravity, which is 3/8ths of Earths, 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) that showed that the newest generation of spacesuits are simply too heavy to use on Mars.