A crew of six, including two Europeans, will soon begin a simulated mission to Mars in a mockup that includes an interplanetary spaceship, a Mars lander and a martian landscape. The Mars500 experiment, as long as a real journey to Mars, will be second to none as the ultimate test of human endurance. The European candidates who will help to answer these fundamental questions will be presented to the media on 22 March 2010 at ESA’s European Space Research and Technology Centre in Noordwijk, the Netherlands. Media representatives wishing to attend the event are kindly requested to fill in the attached accreditation form and return it by fax to the ESA Headquarters Media Relations Office by 18 March 2010.