Overview
- Google’s Project Suncatcher prototype successfully booted an onboard TPU in orbit and returned a Gemma 4–generated haiku, proving a data‑center‑class chip can perform inference from space.
- The refrigerator‑sized satellite produces about 1 kilowatt of solar power, which lets engineers run one TPU at a time for roughly 20 minutes during scheduled ground contacts.
- Ongoing tests are focused on radiation and heat resilience after lab proton‑beam trials showed heavy radiation exposure can damage TPUs and cause memory bit flips.
- A Google energy executive warned that operating data centers in orbit could be as much as 100 times more expensive than terrestrial facilities, and Suncatcher researchers say roughly 1,800 Starship flights would be needed to cut launch costs enough to change that math.
- If current measurements are favorable, Google plans two higher‑power satellites in 2027 with laser links to test splitting large AI workloads, and the results will shape whether the company pursues wider orbital deployments.