Space Suit. Space is a very extreme environment. You will only survive about 15 seconds before losing consciousness because there is no oxygen. Once you lose consciousness, everything in the human body will boil and freeze because there is no air pressure in space. . Nothing can survive without specialized equipment. Astronauts can move freely in space using the spacesuit. The spacesuit has a pressurized atmosphere. The atmosphere in the suit is 4.4 to 5.4 cu ft (0.125 to 0.153 m3) without an astronaut. Here on Earth we experience a force of 14.7 pounds per square inch, in space an astronaut would experience a force of 4.9 pounds per square inch if not in the spacesuit. This is a key element because air pressure maintains everything in the human body. What the astronaut breathes is not normal oxygen like we have here on Earth. The suit contains 78 percent nitrogen, 21 percent oxygen and 1 percent other gases. if the astronaut looked normal in his suit, he would eventually run out of oxygen and pass out. When we breathe, we relax...