we can not live in outer space ordinarily.we should take many practices before going to the space.these practices are very difficult to do.the persons selected to go there by many difficult events.they will be get into a small room like ashuttle with hard situvation like space and no
food for a particular time but they will provided a capsule which is enough to live without
food.how long we are planning to stay there thaat much time they should practice here.there is way like that u said that there is a ticket to go outer space.we can stay there until we have our
food items(given as capsules.one capsule for some days) and other necessary things