The U.S. could keep powerful munitions in orbit to be deployed quickly and without risk to American troops.

Elon Musk has amended his lawsuit against OpenAI, requesting any damages be directed to the company's charitable arm and ...

Tesla billionaire also seeks Sam Altman’s removal from the OpenAI nonprofit’s board in an amendment to the suit over ...

The electric car company continues to face massive challenges as evidenced by its disastrous first-quarter earnings.

President Trump and billionaire Elon Musk’s relationship unraveled in real time, with both men publicly trading barbs for ...

The Elon Musk-led companies plan to work with the semiconductor manufacturer at the Terafab project planned in Texas.

Kyiv’s forces have notched their biggest domestic territorial gains in more than two years after Russia lost the use of ...

With Elon Musk focused on artificial intelligence, investors and analysts are discussing a merger of his biggest companies.

Redundant roles have been removed as the social-media company tries to boost profit and integrate with Musk’s space-exploration company.

Becky Peterson is a Pulitzer Prize-winning reporter for The Wall Street Journal, where she covers Tesla and Elon Musk from New York. She previously reported for the Information covering Musk's greater ...

Elon Musk is building Twitter into something better, bigger, safer and, above all, freer. Yet media headlines claim the company is “dying.” The doom is overwrought. The eccentric billionaire is ...