Google's TPUs to catch some rays in orbit next week

Google plans to launch its tensor processing units (TPUs) into space next week as part of Project Suncatcher, an initiative aimed at creating space-based datacenters powered by solar energy. This is a test mission to evaluate how the TPUs, which are custom-built chips designed for AI workloads, can withstand the launch process and the harsh conditions of space.

Google's focus on this project is seen as a "moonshot," meaning it's an ambitious, long-term goal that may or may not succeed. While some analysts argue that space-based datacenters are not viable for decades and won't benefit terrestrial AI needs, Google remains committed to the project. The TPUs will face numerous challenges once in orbit, such as extreme forces during launch, solar activity and cosmic rays, and the lack of convection-based cooling.

Google is testing different cooling solutions, including radiators and heat pipes, to ensure the TPUs can effectively dissipate heat in the vacuum of space. The test satellite is scheduled to launch on October 1st aboard a SpaceX Falcon 9 rocket. However, even if Google manages to build space-rated TPUs and gets them into orbit, there are still challenges ahead, such as developing high-speed interconnects for data transfer between satellites and making the project economically viable.