The documentary segments of season one featured ... Musk has said he believes a Mars colony would need about a million people to make it self-sustaining - one of his ultimate hopes.

How Elon Musk Will Colonize Mars With 1 Million People! Elon Musk's vision for life on Mars is ambitious, so how will SpaceX and Elon Musk colonize Mars with 1 million people? Let's dig into SpaceX ...