There are three elements for human beings to maintain surviving: sun light, air, and water. Thus, we can know the importance of water and air to human beings. The space is a world of vacuum condition. Astronauts have to bring enough air and water to the space and storage them inside the space shuttles. Here a brief explanation will be given about the attaining of air and water.

Access to Air:
In order to reduce the storage of air and the capacity, all the air (oxygen) carried from the earth is processed under high pressure and storage in liquid form. Space suits are equipped with life supporting system and emergency equipment necessary to astronauts.