Question: Are/were Wubbo Ockels and Roberto Vittori astronauts for the same space agency?
Sentence (from "Superbus (transport)"): The Superbus project, led by Dutch astronaut professor Wubbo Ockels of the Delft University of Technology until his death in 2014 envisages a comfortable, demand-dependent door-to-door transportation rivaling the car and the train.
Relevant evidence: No