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Embark on an extraordinary journey through space exploration with a former NASA astronaut in this captivating 20-minute conference talk from Collision 2017. Discover the unexpected challenges of gaining weight in space, ponder the mysteries of the Big Bang Theory, and learn how even astronauts can overcome a fear of heights. Explore the intricacies of spacesuit technology, uncover the secrets of sleeping in zero gravity, and gain insights into the rigorous process of becoming an astronaut. This engaging presentation, delivered by Mike Massimino from Columbia University and the Intrepid Sea, Air & Space Museum, offers a unique glimpse into the life of a spaceman and the incredible experiences that come with venturing beyond Earth's atmosphere.