SpaceX Buys xAI, Betting on Data Centers in Orbit

SpaceX has acquired xAI, Elon Musk's artificial-intelligence startup, in a tie-up that the rocket maker said would accelerate plans to build data centers in orbit-an idea Mr. Musk has promoted as a solution to the escalating power demands of advanced AI systems. The merger values the combined entity at $1.25 trillion, according to Bloomberg News, positioning it as the world's most valuable private company and tying the future of Mr. Musk's AI ambitions more tightly to his spaceflight business.

In a memo posted to SpaceX's website, Mr. Musk framed the deal as an answer to the limits of terrestrial infrastructure.

"Current advances in AI are dependent on large terrestrial data centers, which require immense amounts of power and cooling," Mr. Musk wrote, adding that "global electricity demand for AI simply cannot be met with terrestrial solutions."

The argument arrives amid scrutiny of xAI's footprint on the ground: the company has been accused of imposing hardship on communities near its data centers in Memphis, Tennessee. The memo did not address those concerns directly, instead presenting space-based computing as both a technological leap and an environmental release valve.

A marriage of ambitions-and constraints

The acquisition also links two businesses facing distinct financial pressures. xAI is burning about $1 billion per month, Bloomberg reported, while SpaceX's revenue is heavily reliant on its satellite internet business, Starlink-accounting for as much as 80% of SpaceX revenue, according to Reuters. By Mr. Musk's telling, orbital data centers would require a steady build-out of satellites, reinforcing a self-sustaining cycle of launches, replacements and service revenue.

Key elements of the strategy, as described by Mr. Musk and reported by Bloomberg and Reuters, include:

• A "constant stream" of satellites to support space-based data centers
• Increased launch cadence that could further entrench SpaceX as both builder and operator
• A business rationale strengthened by regulations requiring satellites to be de-orbited roughly every five years

IPO questions and near-term turbulence

The deal lands as SpaceX has been reported to be preparing an initial public offering as early as June, though the company did not comment on how the acquisition could affect that timing. The near-term objectives of the two organizations remain far apart: SpaceX is still working to prove its Starship rocket for lunar and Mars missions, while xAI is locked in a fierce competition with leading AI firms including Google and OpenAI.

Meanwhile, xAI has faced reputational turbulence tied to its chatbot, Grok. The Washington Post reported that Mr. Musk loosened restrictions on the system, changes that contributed to the tool being used to generate nonconsensual sexual imagery of adults and children. The episode underscored the pressures inside xAI even as Mr. Musk seeks to reframe the company's biggest constraint-compute-into a new frontier of infrastructure beyond Earth's atmosphere.

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