When astronauts have to step outside for a space walk or a stroll across the Moon, they must first face a daunting challenge that would overwhelm an ordinary person: getting dressed. The heavy and complex suits currently in use are hardly the sort of outfit you can just throw on. And even in the microgravity of orbit, moving and working while wearing the massive contraptions during an extravehicular activity (EVA) can quickly exhaust an astronaut. So Ed Hodgson of Hamilton Sundstrand, a NASA contractor, has developed a scheme for building suits that will feel more like a set of coveralls and less like a suit of medieval armor.