If next year’s landing is a success ... Mars a self-sustaining civilization.” Musk is worth an estimated $335 billion, making him the richest person in the world, according to Forbes estimates.

Last month, OpenAI and Musk agreed to fast-track a trial over OpenAI's for-profit shift, the latest turn in a grudge match between the world's richest person and OpenAI CEO Sam Altman playing out ...