Aetherflux Nears $350M Series B at a $2 Billion Valuation
  • News
  • North America

Aetherflux Nears $350 Million Series B at a $2 Billion Valuation

Led by Index Ventures, the round will fund the startup's vision for orbital data centers.

3/27/2026
Ghita Khalfaoui
Back to News

Aetherflux, a space power startup from Robinhood co-founder Baiju Bhatt, is reportedly raising a significant Series B funding round. The deal, led by Index Ventures, could secure up to $350 million and catapult the company to a $2 billion valuation. This investment highlights a strategic pivot toward powering data centers directly in orbit to meet the AI industry's energy demands.


A Strategic Pivot to Orbiting Data Centers

The company has refocused its mission from its original vision of transmitting solar power to Earth via lasers. Founder Baiju Bhatt noted that placing AI processing chips in space is more advantageous than beaming energy to terrestrial data centers. This pivot aims to create an orbital infrastructure that competes directly with the economics of ground-based computing facilities.

While Aetherflux will continue experimenting with laser power transmission, its primary focus is now on orbital data centers. The company's first dedicated data center satellite is slated for a 2027 launch, a critical step in its ambitious roadmap. This new direction leverages its core power-generating technology to serve a burgeoning market for distributed computing in space.

Investor Confidence in a New Frontier

The substantial funding signals strong investor confidence in Aetherflux's revised strategy and the broader space infrastructure sector. Index Ventures' decision to lead the investment represents a significant push into hardware-intensive space technology beyond typical satellite ventures. This move places Aetherflux among the most valuable private companies in the emerging space infrastructure market.

A $2 billion valuation is notable for a company yet to launch its primary operational systems, highlighting the immense perceived market potential. This valuation positions Aetherflux in a rare category of highly valued startups chasing markets that are still in their infancy. The investment reflects a growing belief that orbital solutions are critical for sustaining the rapid expansion of artificial intelligence.

The AI Energy Conundrum

This funding arrives as AI's explosive growth places unprecedented strain on terrestrial energy grids and data center infrastructure. Tech giants are already seeking unconventional power sources to support their operations, creating a clear market need. Aetherflux is betting that space-based solar power will become an essential component of the global energy solution for AI workloads.

Space-based solar offers a theoretical advantage by providing continuous power generation unaffected by weather or nighttime cycles. While historically cost-prohibitive, the concept is becoming more plausible due to advancements in technology and falling launch costs. The AI boom provides the necessary catalyst, creating a customer base potentially willing to pay a premium for reliable energy.

Navigating Economic and Technical Hurdles

Despite the optimism, Aetherflux faces considerable challenges in making its vision an economic reality. The physics are established, but the historical costs associated with launch and hardware have been prohibitive. The company must demonstrate that its systems can deliver power at a cost competitive with evolving terrestrial alternatives like advanced nuclear energy.


Aetherflux's massive funding round represents a bold wager on the future convergence of space technology and AI infrastructure. The investment from a top-tier firm like Index Ventures validates the growing seriousness of orbital power solutions for solving Earth's energy challenges. Ultimately, the company's long-term success will hinge on its ability to deliver on its ambitious promise at an economically viable price point.