How Realistic Is Elon Musk's Plan for a City on Mars?

Transcript

first of all do you believe we need to go to Mars and if so why of course I've been collecting reasons for the last 40 years I mean it's not only the science and possible return on investment but it's exploration I mean great civilizations explore and then as Elon said this could be a hedge against a future catastrophe so do you believe that we cou... Read More