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Space Travel : (Space tourism is unlikely to become a reality within the…

- - - - Providing people(astronauts) with vital resources for existing
        
        There are two huge problems that may be faced by SpeceX on their journey to Mars: the cost of leaving the Earth and providing astronouts during the whole trip (Seedhouse, 2013). However, they are solving these problems, for example, by reducing the cost of starting (Seedhouse, 2013).
        
        The main obstacle to space tourism is a financial issue. As we all know building a rocket is a very expensive process. According to Sebastian (1962), for every kilogram of cargo, 5,4 kilograms of fuel are required to give it enough energy to leave the earth's atmosphere. There is some real evidence that launching a spacecraft is a money-consuming process. For example, the private company SpaceX struggled with covering the cost of launching the spacecraft and providing the astronaut's crew (Seedhouse, 2013).
      - Cost of rocket grows exponentially with it's mass.
        
        5.4 kilograms of fuel is necessary for rocket to export 1 kilogram matter from the earth against the gravitational force. (Sebastian von Hoerner, 1962)
      - It is not profitable