that a Mars settlement would not truly protect humanity if it depended permanently on supplies from Earth.
If communication or transportation between Earth and Mars were interrupted, a self-sustaining settlement would need to continue functioning on its own.
SpaceX and the Future of Mars
SpaceX, Musk’s space company, has made human missions to Mars one of its major long-term ambitions.
The company is developing Starship, a large reusable spacecraft designed to transport people and cargo into space.
The long-term vision involves using large spacecraft to transport significant numbers of people