Google Launches Space-Based AI Data Centers to Tap Solar Power

Google has launched its Project Suncatcher, a research project aiming to develop orbiting AI data centers powered by the sun. The company has sent a refrigerator-sized satellite into space as part of this initiative.

The prototype satellite contains four Tensor Processing Units (TPUs), which are designed for machine learning and have already been deployed in Google's Earth-based data centers. These TPUs will run a version of Google's Gemma AI model, but only for 15 minutes at a time due to heat management constraints.

The mission aims to test how the TPUs handle the physical stress of spaceflight and radiation extremes in space. The satellite is currently in a sun-synchronous orbit where its solar panels are always exposed to sunlight, eliminating the need for backup power or heavy batteries.