Google Project Suncatcher 原型卫星实现在轨 TPU 首次运行 AI 模型

We’ve received our first response from the Project Suncatcher prototype satellite.

AI 导读

Google 宣布 Project Suncatcher 原型卫星达成里程碑：在轨数据中心级 TPU 首次成功运行 AI 模型并返回结果。团队在 10 月 1 日发射原型卫星后完成调试，向星载 Gemma 4 开源模型上传提示词，在卫星经过挪威 Svalbard 时下传了一首关于太空的俳句，随后还测试了太空主题打油诗和载荷系统遥测提示词。

推荐理由

原文给出 Project Suncatcher 原型卫星在轨运行 TPU 并完成首次 AI 输出的细节，以及后续热应力和辐射测试计划。

正文 · 原文

On October 1, we launched our prototype satellite for Project Suncatcher. The launch marked the first step in our long-term research moonshot to explore powering AI compute in space. Since then, we've spent the last few weeks completing our commissioning checklist, which included powering up the host and TPU trays and successfully running early machine learning tests. This week, we reached our "Hello World" milestone: the first-ever AI response from a data center class TPU in orbit.

During a ground-station pass, we uplinked our first prompt to our onboard Gemma 4 open model, asking it to generate a haiku about being in space. As the satellite passed by Svalbard, Norway, the downlinked poem confirmed success:

Blue marble below
Data streams in silent grace
Starlight feeds my core. ✨

Following this initial output, we tested space-themed limericks and telemetry prompts reporting the technical status of the payload systems. Next, we will continue with a series of tests to evaluate how TPUs perform under thermal stress and radiation exposure in orbit. Verifying our TPUs can reliably execute workloads in space paves the way for our next milestone of twin interconnected satellites in 2027.

Our chips have officially earned their space wings — an important achievement on the long road ahead for this cosmic moonshot.