Google's first Project Suncatcher satellite (4 TPUs running Gemma) launches on SpaceX Transporter-18
On Oct 1, 2026 a SpaceX Falcon 9 (Transporter-18, 130 payloads) lifted off from Vandenberg at 11:32 a.m. PT carrying the first Project Suncatcher prototype, a refrigerator-sized Planet-built satellite with 4 Google TPUs that will run a version of Gemma in sun-synchronous orbit. It is Google's first in-orbit test of AI compute; per NPR, Gemma runs 15 minutes at a time because of heat limits.
Key facts
- Launch: Oct 1, 2026, 11:32 a.m. PT, Falcon 9 Transporter-18 from Vandenberg; 130 payloads; booster's 25th flight, landed at Vandenberg
- Payload deployment scheduled to start 54.5 minutes after launch
- Satellite: built with Planet, 4 TPUs, sun-synchronous orbit; runs a version of Gemma for 15 minutes at a time (heat management)
- Planned mission length: about one year; two more satellites to test laser links in 2027
- Suncatcher lead Travis Beals (NPR): 'I don't see this being cheaper in the next five years.'
- No public confirmation yet (as of Oct 2) of first contact or in-orbit TPU results
What happened
Transporter-18 launched on schedule on Oct 1, 2026 and carried Google's Project Suncatcher pathfinder, built with Planet, to low Earth orbit. The satellite has four TPUs and will run a version of Google's Gemma model in sessions of about 15 minutes, a limit set by heat dissipation. Its sun-synchronous orbit keeps the solar panels almost always lit. The mission is planned to run for about a year. Two satellites to test inter-satellite laser links follow in 2027.
Why it matters
This is the first time Google has put its own AI accelerators in orbit to test radiation tolerance and thermal behaviour, the first hardware step toward solar-powered orbital data centers. The project lead says it is unlikely to be cheaper than ground compute within five years.
Changelog
- 2026-10-02: created (outcome of upcoming item 2026-10-01-suncatcher-transporter-18-launch)
Related events
Sources (4)
- pressNPR (via KLCC): Google launches Project Suncatcher, a step towards AI data centers in space
- pressCNBC: SpaceX launches Google AI chips into orbit
- pressStarlust: Transporter-18 sends Google's AI test satellite to orbit with 129 other payloads
- officialGoogle: Project Suncatcher facts
id: 2026-10-01-google-suncatcher-prototype-launched · updated 2026-10-02 · open in the interactive timeline