Elon Musk on Thursday sparred with an attorney for OpenAI during his third day of testimony in the contentious trial over the company’s pivot from nonprofit status to a for-profit venture valued at hundreds of billions of dollars.

Elon Musk said he felt like a "fool" for backing OpenAI, accusing Sam Altman of abandoning the nonprofit's original mission in favor of a profit-driven model.

The most obvious Elon Musk investment is his $1.6 trillion electric vehicle and technology company, Tesla. Musk owns about 12% of Tesla's stock, and he serves as the CEO of the company.

By Echo Wang and Isla Binnie NEW YORK, April 29 (Reuters) - SpaceX is telling investors that no one can fire Elon Musk from his role as chief executive and chairman of the board without the billionaire founder's consent,

Thanks to the ongoing trial pitting billionaires Elon Musk and Sam Altman against each other, it's come to light that Valve founder Gabe Newell--the third billionaire in this story--emailed Musk to ask if Hideo Kojima could get a tour of SpaceX.

SpaceX's Starlink could see capacity rise as much as seven-fold under new Federal Communications Commission (FCC) rules approved this week, a regulatory shift aimed at improving satellite internet speed,

The documents filed by SpaceX with Stock Exchange Commission (SEC) show that Elon Musk will 200 million super-voting shares of the company if he can fulfil certain conditions, such as establishing a colony on Mars with 1 million inhabitants.

Elon Musk‘s SpaceX is expected to debut Starship V3 soon, but a new video posted this week confirmed for the first time that a nitrogen system explosion destroyed the first Version 3 last year. As the company moves toward what may become the biggest IPO ever,