A person wears a Mars suit Aouda.X prototype during testing in the semi-desert of Rio Tinto, Spain, April 18, 2011. The Aouda.X suit has been developed by the Austrian Space Forum (Oesterreichisches Weltraum Forum / OeWF) over three years and is one of the best models of its kind, an OeWF spokesperson says. Picture taken April 18, 2011. [Photo/Agencies] 

A person wearing a Mars suit Aouda.X prototype drives Mars rover Eurobot of the European Space Agency (ESA) during testing in the semi-desert of Rio Tinto, Spain, April 20, 2011. The Aouda.X suit has been developed by the Austrian Space Forum (Oesterreichisches Weltraum Forum / OeWF) over three years and is one of the best models of its kind, an OeWF spokesperson says. The 1.5 million euros Mars rover Eurobot prototype was transported from the Netherlands to Spain for its first test under field conditions. [Photo/Agencies]