mars sim ship.jpg
credit: ESA / caption: home to the Mars mission simulation but for 105 or 520 days?

Its called Mars500 but the volunteer “astronauts” for this Mars mission simulation will only be in there for 105-days initially and the 520-day mission will not start until late this year. The simulation will include delays on communications of up to 20min to replicate the distance from Earth in a real mission. Not much phoning home then…