Elon Musk says Tesla could hit a $20 trillion valuation with “extreme execution.” But with earnings slipping and Bitcoin holdings limited, is that even realistic? Here's the math behind the moonshot.

SpaceX boss Elon Musk has promised to lay out his company’s plans for the mighty Starship rocket in an upcoming event. In a post on X on Thursday night, he said the presentation will take place shortly before the rocket’s 10th flight test, which is expected to take place next in the first half of next month.

Elon Musk announced plans this week to revive Vine, but in "AI form." Here's what we know so far and what people are saying.

Elon Musk's companies have benefited from government contracts, including SpaceX through its relationships with the Pentagon and NASA.

Shares in Tesla were down in premarket trading as the carmaker lays out the risks from President Trump’s tariffs and his scrapping of tax credits.

President Donald Trump on Thursday is set to sign more executive orders and visit the Federal Reserve. Trump's trip to the central bank's headquarters comes amid his relentless criticism of Fed Chair Jerome Powell over interest rates and over the massive renovation project at the Fed.

Elon Musk fought court cases on opposite coasts Monday, raising a question about the billionaire that could either speed his plan to put self-driving Teslas on U.S. roads or throw up a major roadblock: Can this wildly successful man who tends to exaggerate really be trusted?

Elon Musk announced Thursday that Vine, the once-popular short-form video app, will return in a new format powered by artificial intelligence. The announcement, made in a brief post on X, offered few detailed but confirmed the project is in development. "We're bringing back Vine, but in AI form," Musk wrote.