Replay of the conference held on January 28, 2025 at the José Cabanis multimedia library, Toulouse
By Roland Lehoucq, astrophysicist at CEA Saclay
Space travel is a favorite theme in science fiction. Some films, like Star Wars or Star Trek, feature fabulous spaceships that take you from planet to planet like a bus. Others, like Avatar, show more plausible spaceships. They all make us dream, even if we know that interstellar travel is a long way off. So what’s basically stopping us from traveling to the stars?
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