A team made of six people has completed a mission of simulation of life on Mars, held in a dome in Hawaii. They lived isolated for a year, according to BBC. The team was formed by an astrobiologist from France, a physicist from German and four people from America - an architect, a pilot, a soil scientist and a journalist. The experiment aimed to study the human element of space exploration.

A year without fresh air, fresh food and privacy

Since August 29 2015 the team has lived in a small Space inside a dome. They had no air from outside, no fresh food and no privacy. The experts think that a human mission to Mars could last between one and three years.

NASA's study -- which was directed by the University of Hawaii -- is the longest study of its kind after the Russian mission which lasted 520 days.

The members are confident about the success of the mission to Mars

After surviving for one year in isolation, the team members said they are confident that a Mars mission would be successful. Cyprien Verseux, a journalists, one of the team members said that, in his opinion, a mission to Mars in the near future would be realistic. He said he thinks that the obstacles - such as psychological obstacles or  technological ones - will be overcome.

Unbearable lack of privacy

However, Carmel Johnston , the head of mission, said the lack of privacy in the last year was unbearable. She said it was like having roommates who are there all the time and whom you can never escape from.

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She said that she was convinced that some people can imagine how it was.

Tristan Bassingthwaighte, an expert in architecture from the University of Hawaii, praised the study about the human element in space travel. He said that this kind of research is vital when it comes to choosing the crew, understanding how people will work in different types of missions, and understanding  the human factor element in space travel.

Limited resources

During the research period, the people involved were forced to survive with only limited resources, to wear space-equipment every time they got outside the dome and to avoid any personal conflicts. Each of them had a small bed in the room and a desk. The supplies consisted of cheese powder and canned fish. Usually, the missions from International Space Station don't take more than six months.