By Ewan Gleadow & Graeme Murray NASA is looking for candidates to become “test subjects” to simulate what life would be like on Mars, it has been reported. Candidates must be willing to surrender a year of their lives to simulate life on Mars. Four candidates are wanted by the space organisation for study which will provide the highs and lows of living in another world. The experiment will give an insight into how difficult it will be to exist on the Red Planet. The team will be holed up in Mars Dune Alpha habitat for a year and will be presented with a ‘number of extra-terrestrial challenges’…