To see additional content. Visit the Aerospace Education YouTube Channel at:

https://www.youtube.com/robertroberts

From Scott Manley's site:

Scott Manley is someone who fell into YouTube because he felt a deep compelling need to teach people orbital mechanics and rocket science so they could play Kerbal Space Program, now, years later the gaming videos are less important and the pure science is the main thrust. My degrees are all in Physics and Astronomy, so much of the rocket science and engineering I've learned is self taught, always learning, always teaching.