An unmanned, electric, autonomous aircraft travelling at 75 kilometres per hour lands gently on the roof of a moving car. For the first time, researchers at the German Aerospace Center (Deutsches Zentrum f?r Luft- und Raumfahrt; DLR) have successfully demonstrated a technique developed for this purpose. The system could be applied to ultralight solar-powered aircraft that complement conventional satellite systems while flying in the stratosphere. Eliminating the landing gear significantly increases the payload capability of a solar-powered aircraft – it is easier to land during crosswind conditions, making landings in unfavourable weather conditions possible.