The bold idea of placing AI data centers in outer space has taken another step toward reality, though its feasibility remains uncertain.
Last week, Google's Project Suncatcher launched aboard a SpaceX rocket, placing a refrigerator-sized satellite into orbit equipped with four AI chips to conduct an early test on whether today’s power-hungry data center technologies could one day operate in space.
According to a Google blog post, the satellite, developed in collaboration with Planet Labs, was launched on October 1 and is currently operating normally. The mission focuses on observing how Google’s custom TPU chips withstand the intense vibrations during launch and the radiation and thermal extremes of space. The New York Times reports that the satellite will conduct experiments in low Earth orbit for approximately one year.
This satellite from Google relies on solar panels to harness solar energy. Since it is difficult to dissipate heat using water or fans in space as on Earth, Google researchers designed a system composed of heat pipes and radiators to prevent the chips from overheating. Even so, due to limited cooling capacity, Google still shuts down the chips for cooling after every 15 minutes of operation, according to NPR.
Regardless of how early this experiment is, this launch marks a milestone in an emerging technology that has the potential to meet the growing computational demands of AI while circumventing Earth’s limitations in power, water, and land. As companies invest billions of dollars in ground-based data centers and face opposition from community members and policymakers, building AI infrastructure in space is becoming increasingly appealing.
In early 2026, SpaceX brought the concept of orbital data centers into the mainstream. Led by long-time optimist Elon Musk, SpaceX submitted a plan to the U.S. Federal Communications Commission to launch a network of up to one million satellite-based data centers in space.
Musk said at the World Economic Forum in January: "Putting AI in the lowest-cost location will be space, and this will become a reality within two years, perhaps three at the latest."
Jeff Bezos’s space company, Blue Origin, also submitted a proposal in March to deploy 51,600 satellites to form a satellite network called Project Sunrise.
However, before this concept becomes mainstream, Google has already been working to make it a reality. In November 2025, Google launched Project Suncatcher to explore how an interconnected network of solar satellites powered by our Tensor Processing Unit (TPU) AI chips could harness the full energy of the sun.
With this most recent launch, Google has taken a significant step toward validating the concept of an orbital data center, although experts warn that major challenges remain ahead.
First, operating a data center in space requires massive solar arrays to collect solar radiation and convert it into energy. These large, heavy arrays, along with other equipment, would incur extremely high transportation costs to space, Jeff Thorneberg, CEO of Portal Space Systems, previously told Fortune. Although research from ARK Invest, led by Cathie Wood, shows that SpaceX has reduced its estimated launch costs by 95% since 2008, to about $1,000 per kilogram, the high cost remains a barrier.
Another factor is the impact of radiation on data center chips, which can cause errors. Google is studying this issue through its Project Suncatcher satellite. The company states that it has tested the chips on Earth and found they “can withstand total ionizing radiation doses exceeding those expected over a five-year space mission,” but it also acknowledges that solar activity and cosmic rays pose risks.
In addition, equipment repair is also an issue, and repairing equipment in space is much more difficult.
However, Google is not the only company that has tested AI chips in orbit. In November last year, the startup Starcloud launched a satellite into space equipped with NVIDIA’s high-performance H100 chip, demonstrating that the chip can run Google’s lightweight AI model, Gemma.
Another startup, Cowboy Space Corp., founded by Robinhood co-founder Baiju Bhatt, also launched a satellite last week aboard the same SpaceX rocket as Google.
The satellite named Reason-1 is planned to test transmitting solar energy back to Earth using powerful lasers. In a Bloomberg interview published on Thursday, Bhatt said the company has established contact with the satellite and is preparing to demonstrate its technology for the first time in the coming weeks. Bhatt also stated that Cowboy Space’s ultimate goal is to develop a vehicle capable of delivering data center payloads into space.
The October 1 launch is just the beginning of Google's ambitions for its Orbital Data Center.
The company plans to launch two more satellites into space in 2027 to test how they communicate via laser. Google stated in a blog post that this requires precision “similar to hitting a coin-sized target from several miles away while both parties are moving.”
However, James Manyika, Google’s senior vice president for research, told The New York Times that even in the coming years, the ultimate dream of sending data centers into space may not be realized.
He said, "Do you remember how Google researched for about 15 years before achieving real results? I think this will be similar."