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Click gets rare access into Nasa HQ to take a look at the research and engineering that is going to make space exploration possible. For the first time, the Human Exploration Research division opens its doors to give an insight into a specially designed habitat that locks up four astronauts for a 45-day fake mission, studying human behaviour in isolation, confinement, and stressful exploration scenarios. Click also gets to test drive space exploration vehicles on specially designed Mars terrain, gets up close and personal with humanoid space robots and interviews the head of Nasa mission control.