Artist Stanley Von Medvey offers some nicely made video tutorials for the general reader on rockets and the challenges of getting to space. Episode 2 Part 2 just came out yesterday.
** Stan Draws Spaceships 1: Expendable Launch Vehicles
** Stan Draws Spaceships Episode 2, Part 1: The Space Shuttle
** Stan Draws Spaceships Episode 2 Part 2: Falcon and Skylon
You can help Stan make more tutorials by contributing at Stanley is creating Animated Shorts | Patreon.