Mr. Musk spent the summer at his artificial intelligence start-up xAI, trying to match the runaway success of OpenAI. The ...

Southern California defense startups are receiving millions in funding as Silicon Valley venture capital firms and legacy ...

The National Highway Traffic Safety Administration told NBC News that it had spoken to Tesla about mishaps at train crossings ...

Musk is a self-proclaimed “free speech absolutist”, a response he has used to counter criticism of hate speech on his social ...

Federal auto safety regulators opened an investigation Tuesday into possible defects in Tesla doors that have reportedly left ...

Tech billionaire Elon Musk has rejected calls for national unity and has instead embraced increasingly inflammatory rhetoric ...

X, now located at 865 FM 1209, Building 2, Bastrop, TX 78602, is yet another technology company to choose the Lone Star State ...

Another SpaceX Falcon 9 rocket is due to launch from California, but will a daytime launch window make the spacecraft hard to see in Arizona?

Amanda M. Castro is a Newsweek Live Blog Editor based in New York. Her focus is reporting on U.S. politics, breaking news, ...

Ready to see a SpaceX Falcon 9 blast off into the sky? Another California rocket launch in September could take place this weekend.