If these missions are successful, it will be possible to start crewed flights in two years. Previously, the head of SpaceX announced a period of 7 or even 9 years. Musk’s vision is that after these first flights, the frequency of flights will increase exponentially with the goal of creating a self-sufficient city on Mars in about 20 years.
Musk is focused on exploring the Moon as well as Mars, and he expects SpaceX’s Starship to begin carrying people and cargo to the Moon by the end of the decade.
Source: Ferra

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