Elon Musk Full Talk @ ISS R&D Conference, July 19, 2017 : SpaceX; NASA; Tunnels; Solar - YouTube

https://www.youtube.com/watch?v=Jv5LjA62Uw8

On July 19, 2017, SpaceX founder Elon Musk was interviewed at the ISS R&D Conference in Washington, DC. He also took questions from the audience. This video ...