Satellit bygget via internettet   The SSETI Express satellite will test and characterise a propulsion system, return images of the Earth and serve as a transponder for amateur radio users.   Like a Russian doll, SSETI Express will carry inside it three smaller 'cubesats' – 10-centimetre cube technology testers built respectively by universities in Germany, Japan and Norway – for deployment when in orbit. The main SSETI Express satellite itself will test and characterise a propulsion system, return images of the Earth and serve as a transponder for amateur radio users.   Artist's impression of the ESEO satellite imagined by SSETI students   Solar panels of the gallium-arsenide type that will power SMART-1 enabled the Dutch-built solar-powered car 'Nuna' to win the World Solar Challenge race across Australia in 2001   Students and ESA experts at the SSETI workshop that took place at ESTEC in December 2003 Release date: 21 Oktober 2004