Google Unveils First Satellite in Project Suncatcher Constellation

Google's Project Suncatcher is taking its first step towards launching a space data center in orbit. The hyperscaler will launch a prototype satellite next week as part of its two-satellite constellation project, which aims to have a complete system up and running by 2027.

The initial test craft, named MVP, features four Tensor Processing Unit (TPU) AI chips powered by solar panels that supply them with 1kW. To prepare for the harsh conditions in space, Google's team conducted vibration testing by intensely shaking the satellite on all three axes to mimic rocket launch frequencies.

The TPUs were also tested in a proton beam facility at UC Davis's Crocker Nuclear Laboratory to simulate how they would perform under high levels of radiation. According to Travis Beals, Google's senior director for paradigms of intelligence, 'tests like this rarely go as planned, so we were pleasantly surprised that the hardware held up to the force.'

The cold conditions in space present a unique challenge for data centers, but also offer opportunities for innovative cooling solutions. Google is exploring different approaches, including heat pipes and radiators, which have shown promising results in thermal vacuum chamber testing.