What does a space suit do to help astronauts?

Answer 1

If you were to walk out into outer-space without a space-suit, you would probably die. Because the pressure inside your body is much higher than the vacuum of space, the gas particle in your lungs would rush out to fill the empty space, this would mean the air in your lungs would rush out, taking your lungs with them which would mean you would expand and your lungs would soon penetrate through your ribs and skin. This would almost certainly kill you. Another reason you would die is that the liquid particles of your blood would also try to fill the space inside the vacuum which would cause your blood to boil, and the minute that started to happen, you would have no chance of living. This is why you need a space-suit. A space suit modifies the temperature to keep you warm, keeps you in an air-tight, pressurised state (so your body wouldn't try to fill the empty space around it, because the air around it was pressurised), gets rid of waste and protects you from any sun damage that could be caused. Space suits are vital for survival in outer space!