Key Points: SpaceX plans to send Google Tensor Processing Units (TPUs) into orbit aboard Planet Labs satellites. The "Transporter-18" mission will be the first in-orbit test of Alphabet's Project Suncatcher, a high-risk frontier R&D project aimed at building reliable space-based AI computing infrastructure. Alphabet holds a stake in SpaceX valued at over $82 billion, and SpaceX completed a record-breaking IPO in June.
On July 21, 2026, at Launch Complex 40 at Cape Canaveral Space Force Station in Florida, a SpaceX Falcon 9 rocket launched, carrying Northrop Grumman's Mission Robotic Vehicle (MRV) and Mission Extension Pod (MEP).
Google's parent company Alphabet (GOOG) plans to send its self-developed AI chips into space aboard a SpaceX Falcon 9 rocket on Thursday, taking a key step toward realizing space-based data centers.
The launch is scheduled for 11:15 a.m. Pacific Time at Vandenberg Air Force Base in Santa Barbara County, California. SpaceX calls space supercomputers the next frontier of AI infrastructure, touting the "limitless space" of orbit as a way to escape the various social obstacles encountered in building ground-based data centers.
On this uncrewed "Transporter-18" rideshare mission, SpaceX will carry multiple Planet Labs satellites, including a solar-powered prototype satellite equipped with Google Tensor Processing Units (TPUs). This is the first in-orbit test of Alphabet's "Project Suncatcher." The high-risk R&D project was publicly announced by Google in November 2025, with the goal of building reliable AI computing infrastructure capable of operating continuously in space, powered by solar energy.
In an official blog post describing the launch plan, Alphabet said Project Suncatcher aims to "explore whether space can host scalable machine learning infrastructure in the future."
Alphabet is a significant investor in SpaceX. SpaceX completed the largest IPO in history in June this year, and although the two companies' AI divisions are competitors, the two maintain a deep cooperative relationship. Currently, Alphabet's equity stake in SpaceX is valued at over $82 billion.
Alphabet noted in its blog post that satellites in low Earth orbit "can receive sunlight almost continuously, generating up to 8 times more solar power than on the ground." The company's long-term vision is to "interconnect multiple satellite constellations to process larger-scale AI computing tasks in orbit."
The Google parent has previously completed ground-based tests of TPUs running AI tasks at a laboratory at the University of California, Davis, but how the chips will actually perform in the harsh environment of low Earth orbit remains unknown.
SpaceX, led by Musk, has also announced plans to develop its own orbital data centers. The entire system consists of a large cluster of satellites manufactured at a facility in Redmond, Washington, with satellites carrying graphics processors and solar panels to be produced with assistance from Musk's automaker Tesla. Earlier this year, Musk said space data centers would become the lowest-cost AI training solution, "achievable within two to three years at the latest."
SpaceX Chief Operating Officer Gwynne Shotwell said at an event in September that the company will deploy "space supercomputing" in 2027.
Industry experts point out that even if space data centers become feasible in the future, they remain a distant concept at present. On one hand, rocket launch capacity is tight and costs are high; on the other hand, orbital data centers require cooling systems and chips capable of withstanding extreme temperatures, as well as radiation protection. Space debris and orbital congestion issues will also constrain the implementation of this plan.
This "Transporter-18" is SpaceX's second milestone launch of the day. On Thursday, the company will also carry out NASA's Crew-13 mission from the Florida Space Coast, transporting astronauts to the International Space Station for a six-month stay in orbit.