How Musk Used SpaceX to Rescue xAI and Build a $1.25tn Colossus

The world’s most valuable private company just got bigger—and more audacious. On February 2, 2026, Elon Musk orchestrated a historic merger that combined SpaceX with his cash-burning artificial intelligence startup xAI, creating a $1.25 trillion entity poised to transform both space exploration and the AI industry. The deal, which represents the largest M&A transaction in…