Question: What is the name of the American physicist and NASA astronaut who died during the launch of the Space Shuttle 'Challenger', and for the victims of which was held the 'Rendez-vous Houston', the largest outdoor concert in history by musician Jean Michel Jarre?
Sentence (from "Space of Freedom"): Jarre was invited by Lech Wałęsa to hold this concert, which was watched by an audience of more than 170,000 people who bought tickets, as well as many others who observed the event from outside the shipyard, in high buildings such as Zieleniak and the hills of Góra Gradowa.
Relevant evidence: No