https://www.youtube.com/watch?v=IFA6DLT1jBA

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.