SpaceX CEO Elon Musk went into a bit more detail about the timelines and vehicle requirements to not only reach Mars, but to set up a sustainable base on the red planet that can serve as an actual city, supporting a local population. That’s the long-term vision for Musk and his space technology company, after all – making humans an interplanetary species. The timeline that Musk discussed today, replying to fans on Twitter, might be both incredibly impressed or incredibly ambitious, depending on your perspective.

Addressing a question about comments he made earlier this week at the U.S. Air Force startup pitch day event in California, Musk said that his stated launch cost of only around $2 million per Starship flight are essentially required, should

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