Google's Project Suncatcher satellite returns first AI output from orbit
A Gemma 4 model running on a TPU aboard Google's prototype satellite generated a haiku, confirming the chip operates in space.
What to know
- Google's prototype Project Suncatcher satellite, launched October 1, produced its first AI output in orbit: a haiku generated by an onboard Gemma 4 model running on a data center class TPU.
- The test confirmed the chip can execute ML workloads in space; Google plans further tests under thermal stress and radiation exposure.
- Next milestone is a pair of interconnected satellites planned for 2027, part of Google's longer-term exploration of space-based AI compute.
Google Research Developer of Project Suncatcher
How it unfolded 1 development · click the chart to see its coverage articlesposts
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Google outlines path to thermal and radiation testing, 2027 twin satellites
Google said it will next evaluate how the TPUs perform under thermal stress and radiation exposure in orbit, building toward a 2027 milestone of two interconnected satellites.
“Verifying our TPUs can reliably execute workloads in space paves the way for our next milestone of twin interconnected satellites in 2027.”
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Putting AI in space is a silly idea. How do you cool it reliably? How do you handle rad-hardness? How do you even get the gear up there? It's one of the most expensive places to put mass.Using geothermal power or floating solar arrays in the ocean makes way more sense. It's much easier to access, you have water for a heat sink, and you're far away…
2 more of the top 3 · 7 posts in this stretch
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This was a completely vapid article. I expected some technical details at least, but instead it's an LLM generated poem confirming it worked in a short interval, which nobody doubts it would. All eyes are on long term heat dissipation and the impact of radiation and success of radiation hardening meterials and processes.
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Is this the piece of junk that can only run for 15min at a time before it overheats? They probably could have done some more analysis before launching it into space.. Like put the radiator in a vacuum chamber maybe? Or do some thermal modelling? Or did they know it would do this and launch it anyway? Would love to know why.
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Google runs follow-up limerick and telemetry prompts — After the initial haiku, Google tested space-themed limericks and telemetry prompts reporting the technical status of the payload systems.
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Onboard TPU returns first AI response from orbit — During a ground-station pass, Google uplinked a prompt asking its onboard Gemma 4 model to write a haiku about being in space; the downlinked poem, received as the satellite passed Svalbard, Norway, confirmed the 'Hello World' milestone.
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Team completes satellite commissioning checklist — Over the following weeks, Google powered up the host and TPU trays and successfully ran early machine learning tests aboard the satellite.
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Google launches Project Suncatcher prototype satellite — The launch marked the first step in Google's research moonshot to explore powering AI compute in space.
What people are saying 4 voices from 1 site · best of 7 · verbatim
- Oct 31
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So their weights are just floating up there?I suppose it’s beyond hard anyone would hijack their satellite but still. Wonder if they put any physical security on it anyway.
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That was a month ago. https://news.ycombinator.com/item?id=49830606 This is just a status update, which the title is pretty clear about.
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Google taking a lesson from the marketing school of Musk? Public spectacle to boost stock price?
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I still can't think of a use case for this besides making it difficult to shut down illegal AIs.