Facts No. 1 – Space suits protect astronauts when they go outside their spacecraft. The suits are also called EMUs (Extra-vehicular Mobility Units).
Facts No. 2 – The outer layers of a space suit protect against harmful radiation from the Sun and bullet-fast particles of space dust called micrometeoroids.
Facts No. 3 – The clear, plastic helmet also protects against radiation and micrometeoroids.
Facts No. 4 – The soft inner lining of a space suit has tubes of water in it to cool the astronaut’s body or warm it up.
Facts No. 5 – The backpack supplies pure oxygen for the astronaut to breathe, and gets rid of the carbon dioxide he/she gives out. The oxygen comes from tanks which hold enough for up to 7 hours.
Facts No. 6 – The gloves have silicone-rubber fingertips which allow the astronaut some sense of touch.
Facts No. 7 – Oxygen is circulated round the helmet to stop the visor misting.
Facts No. 8 – The middle layers of a space suit are blown up like a balloon to press against the astronaut’s body. Without this pressure, the astronaut’s blood would boil.
Facts No. 9 – Various different gadgets in the suit deal with liquids – including a tube for drinks and another for collecting urine.
Facts No. 10 – The full cost of a spacesuit is about $11 million although 70% of this is for the backpack and control module.