6 scientists pretending to be astronauts on Mars just spent 365 days together – isolated from the rest of the world in a tiny habitat. Yesterday they were set free. Lots learned about the psychological effects of a long space flight.
The trip to Mars should take about 6 months but there’s a two year wait until the return trip when the planets are properly aligned. There’s also a one-way trip to Mars planned if you don’t plan on returning to Earth.