Space Exploration Technologies chief executive and chief technology officer Elon Musk spoke at the Space Foundation’s 25th National Space Symposium on Wednesday 1 April. In this 28min video Musk talks about his company’s up coming commercial Falcon 1 launch and the plans for the Falcon 9 first flight. He shows a number of videos and also takes questions. An audio recording of Musk’s session without the videos’ sound tracks can be found here