In a trial featuring a clash between Elon Musk and OpenAI CEO Sam Altman, neither of the tech titans has emerged as an overly sympathetic character. But nobody has more to lose than Altman, who is expected to take the stand Tuesday to defend himself.

OpenAI CEO Sam Altman took the witness stand Tuesday to defend his business record in a trial pitting him against Elon Musk, rebutting testimony that disparaged his leadership at a pivotal time for the ChatGPT maker.

Baron Capital's Ron Baron thinks Elon Musk's SpaceX could eventually be "the largest company on the planet" with a market capitalization of $30 trillion.

Sam Altman told the court that Elon Musk once sought lasting control over OpenAI and suggested it could pass to his children. The testimony goes to the heart of the dispute over OpenAI's mission, governance and later commercial shift.

Did Elon Musk buy Spirit Airlines? No. A parody account started the rumor. Read the truth about this viral hoax.

In this future, work itself is a luxury. A universal basic income, the concept popularized by then-Democratic presidential hopeful Andrew Yang in 2020, would be flipped on its head. Governmental support for the jobless wouldn't be needed because everyone would be wealthy.

Elon Musk’s mom Maye Musk detailed the joys of being mom to him and his two siblings, as well as her 19 grandchildren in an exclusive statement to E! News.

Elon Musk appears to have identified a site for his massive Terafab chipmaking facility — and it's right outside of Aggieland.