Elon Musk, chief executive officer of Tesla Inc., during the US-Saudi Investment Forum at the Kennedy Center in Washington, DC, US, on Wednesday, Nov. 19, 2025.Elon Musk said a primary reason for merging SpaceX with his artificial intelligence startup, xAI, is to more effectively build "orbital data centers." That's for a far-off future.For now, xAI has a much more pressing need: cash. In Monday's blog post announcing the combination of his two companies, Musk estimated that "within 2 to 3 years, the lowest ...