Overview
- Google disclosed Sept. 24 that it will launch a refrigerator‑sized prototype called MVP on Oct. 1 aboard SpaceX’s Transporter‑18 from Vandenberg carrying four Trillium tensor processing units.
- The mission’s main goal is to measure how the TPUs survive launch vibration, space radiation and extreme temperatures while testing a cooling design that uses heat pipes and radiators.
- Engineers say the chips can run workloads for roughly 15 minutes before needing to shut down to cool and that MVP will answer simple Gemini queries while operating in orbit for about a year.
- Before the flight Google ran vibration and proton‑beam tests at UC Davis’s Crocker Nuclear Laboratory that showed the processors tolerate radiation levels beyond typical five‑year orbital exposure.
- Google plans two 2027 follow‑up satellites to test high‑bandwidth laser links for clustered orbital compute, but analysts and government reviews warn that cooling limits, launch and manufacturing costs make commercial use years away and the Oct. 1 data will be decisive.