Elon Musk unveils SpaceX’s future Mars vehicle and discusses the long-term technical challenges that need to be solved to support the creation of a permanent, self-sustaining human presence on Mars. The presentation focuses on potential architectures for sustaining humans on the Red Planet that industry, government and the scientific community can collaborate on in the years ahead.

Overview:
00:00. Why Mars and become a multi-planetary civilisation
05:55. Early exploration missions
09:15. Challenge 1: Full re-usability
11:17. Challenge 2: Refilling in orbit
12:31. Challenge 3: Mars propellant production
13:29. Challenge 4: Right Propellant
16:00. Mars Vehicle video
21:34. System architecture
23:25. Technical details
28:27. Vehicles by performance
31:38. Thruster & booster
36:27. Spaceship
39:34. Heat shield & Crew compartment
42:22. Costs & funding
45:45. History of SpaceX
52:34. Next… Dragon 2 on Mars in 2018
57:47. Raptor engine & carbon fibre tank
1:01:47. Beyond Mars

Source: Every Elon Musk Video