Musk—who has a history of setting unrealized goals for his companies—says he wants to send humans to Mars by 2029, though he says 2031 may be more likely.

Elon Musk has revealed an ambitious plan to send Tesla's humanoid robot, Optimus, aboard SpaceX's Starship on a groundbreaking mission to Mars late next year. This bold step could lay the foundation for future human colonization,