Think about how you suit up when you go outside on a cold winter's day. You have your shirt, pants, sweater, perhaps long underwear, jacket, gloves, hat or hood, scarf and boots. You put on quite a bit of clothing to protect you from the cold. Now, imagine what you would have to put on to protect you from outer space! Spacesuits must provide all of the comfort and support that the Earth or a spacecraft does, addressing issues like atmosphere, water and protection from radiation.

Photo courtesy NASA

In this edition of HowStuffWorks, we will examine the problems of walking in outer space and how spacesuits are made to cope with them.