ESA astronauts Frank De Winne (l) and Andre Kuipers (r) visit the European Astronaut Centre (EAC), in Cologne, Germany, for experiment training. Here they are seen inside the full-size Columbus and Node-2 training model at EAC. De Winne is scheduled to take part in a long-duration mission to the International Space Station (ISS) between May and November 2009. Andre Kuipers is assigned as his back-up.