Restless sleep on the way to Mars
Training on the simulated martian terrain of Mars500. The mock planet was 10 m long and 6 m wide, covered with reddish sand to resemble the surface of Gusev crater.
'Marsonaut' Alexej Sitew with temperature sensor during a sleep study.
Mars500’s aim was to prepare for human missions to the Red Planet. Confined in their habitat for 520 days, the six crewmembers studied human behaviour during the lengthy isolation. The experiments focused on their bodies, mental condition and performance.
One Mars500 experiment monitored their temperature