The company didn't immediately say what went wrong. SpaceX's stock plunged more than 4% in after-hours trading before paring losses.

The stock has steadily fallen from the euphoric post-IPO high, showing that markets may be sobering up to the promises CEO Elon Musk made before and after SpaceX went public.

Responding to Musk accusing him of being a scammer, Altman said, "homeboy you're the one sellling [sic] public market investors on short-term space datacenters."

This will be the first Starship test flight for SpaceX as a public company, testing the market's appetite for the company's "fly, fail, fix" approach to rocket development, which often ends in fireballs.

China's state-owned space company recovered its first orbital rocket booster after launch.

Should Anthropic trust Elon Musk to host its models? With about $40 billion in revenue at stake, Musk insists that the company can.

Three big AI IPOs are set to generate more value than all the U.S. VC-backed exits since 2000.