Google's Space Data Center Now Online!

Google's Suncatcher prototype, a space data center, has successfully launched and is now communicating with ground control. This significant milestone was achieved after the satellite was deployed alongside over 100 other spacecraft aboard a SpaceX Falcon 9 rocket earlier this month.

The Suncatcher satellite is equipped with a single Google Tensor Processing Unit (TPU) and can generate up to 1 kW of electricity. Its primary purpose is to pave the way for future networks of satellites capable of performing large inference workloads while in orbit. Initial tests involved the satellite's Gemma 4 model writing a haiku about space.

Engineers will assess the performance of the TPU chips under various space conditions, including thermal stress and radiation. While Google has conducted extensive ground testing, this mission provides real-world data on how radiation affects the processor. Successful testing could lead to the launch of two additional satellites in 2027, designed for higher power generation and featuring inter-satellite optical links.

Google's Starcloud project aims to develop space-based data centers with high-speed inter-satellite links for distributed workloads. This vision is closely tied to SpaceX, with Alphabet, Google's parent company, holding a significant investment in SpaceX. Both companies anticipate utilizing the Starship rocket for future launches.