⏱️ 5 min read
Elon Musk merged SpaceX and xAI in a record $1.25 trillion deal to build orbital AI data centers powered by 24/7 solar energy. Here’s why he believes space is the cheapest place for AI compute, and why experts disagree.
The Biggest Merger in History: SpaceX Absorbs xAI
On February 2, 2026, Elon Musk announced the merger of his rocket company SpaceX with AI startup xAI in a deal valued at $1.25 trillion — the largest corporate merger in history. SpaceX was valued at $1 trillion and xAI at $250 billion.
Musk described the combined entity as “the most ambitious, vertically-integrated innovation engine on and off Earth, combining AI, rockets, and space-based internet.”
The Core Reason: AI’s Insatiable Energy Appetite
The AI industry faces a critical bottleneck: power. Tech companies are projected to spend over $5 trillion on ground-based data centers by the end of the decade, yet electricity supply simply cannot keep up with demand.
Musk’s solution is elegantly simple — put AI computers in space where solar power is available 24/7.
- No atmosphere means ~5x solar efficiency compared to ground installations
- No clouds, no night cycles, no weather interference
- No need for expensive energy storage systems (ESS)
Musk estimates that “within 30 to 36 months, space will be the lowest-cost place to deploy AI compute.”
Orbital Data Centers: A Million-Satellite Network
The plan involves deploying up to one million AI satellites in orbit, creating a massive distributed computing network. SpaceX already operates thousands of Starlink satellites, giving it unmatched expertise in orbital infrastructure.
Musk has gone even further with ‘Moonbase Alpha’ — a proposed lunar manufacturing facility that would produce AI satellites and launch them across the solar system using a maglev mass driver.
Expert Pushback: “Not So Fast”
Skeptics have raised serious concerns about feasibility.
- Launch capacity: There aren’t enough rockets to deploy a million satellites
- Heat dissipation: Cooling AI chips in the vacuum of space remains unproven
- Cost: Generating 1 GW of power in orbit would require roughly 1 km² of solar panels — extremely heavy and expensive to launch at thousands of dollars per kilogram
- Latency: Terrestrial fiber optic connections still outperform orbital communication systems
- Space debris: Managing collision avoidance for massive satellite constellations is a growing concern
AWS CEO Matt Garman called the idea “unrealistic given current technological and economic constraints.” Georgetown University analyst Kathleen Curlee projects meaningful orbital data centers are at least 10+ years away.
The IPO Play: $50 Billion Target
This merger also sets the stage for SpaceX’s highly anticipated IPO later in 2026. The company aims to raise up to $50 billion, with post-merger valuations potentially reaching $1.5 trillion.
By combining AI and space — two of the decade’s most compelling investment themes — the merged entity presents a powerful narrative for public market investors.
Key Takeaways
- SpaceX + xAI merger: $1.25 trillion (largest ever)
- Core objective: Build orbital AI data centers powered by 24/7 solar energy
- Advantage: Space solar is ~5x more efficient than ground-based systems
- Musk’s timeline: 2-3 years to cost viability
- Expert consensus: At least 10+ years away from meaningful deployment
- IPO target: Up to $50 billion raise planned for late 2026