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Google Says Four TPUs Sent to Orbit Powered On, Processed a Prompt, and Sent a Reply to Earth

October 30, 2026 at 13:23 EDT

Infra & Chips

Google said this week that four of its Tensor Processing Units (TPUs) sent into orbit on October 1 powered on, processed an AI prompt, and transmitted a response back to Earth, marking an early test of whether AI hardware can operate in space.

October 1 · Google

Google's TPUs Power On and Answer a Prompt From Orbit

Four Tensor Processing Units launched on October 1 completed a first test of whether AI hardware can work in space: they switched on, processed a prompt, and sent the response back to Earth. The test was early and small, not a deployment.

TPUs sent into orbit

4 of 4

chips reported powered on

round trip: prompt up, response down

Chips launched vs. chips powered on

Each block = one TPU. Same unit, drawn to scale.

Launched

Powered on

The test sequence

STEP 1

Launch

Four chips reach orbit on October 1

→

STEP 2

Power on

Chips switch on in the orbital environment

→

STEP 3

Process

Run an AI prompt on the hardware

→

STEP 4

Transmit

Response sent back to Earth

What the test showed

AI chips can power on after reaching orbit
They can run a prompt in that environment
Results can be sent back to the ground

What remains unknown

Performance, throughput, and latency
Power consumption
Radiation-induced errors
How long the chips kept running
How many prompts were run

Bottom line

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