Google plans to launch an experimental satellite equipped with artificial intelligence chips on October 1st. This mission marks the first orbital test of Project Suncatcher, an initiative dedicated to investigating the feasibility of transporting computing infrastructure into space.
This prototype, named MVP, will be transported using a Falcon 9 rocket provided by SpaceX. According to The New York Times, the satellite will feature four Tensor Processing Units (TPUs), which are chips developed by Google itself to handle AI tasks, in addition to solar panels capable of generating approximately one kilowatt of energy.
The initial purpose of this experiment is not to establish a complete data center in orbit. Google's primary focus is to evaluate how its chips perform under harsh space conditions, such as vibrations during launch, radiation exposure, and temperature fluctuations outside the atmosphere.
Before the launch, the corporation subjected the equipment to rigorous vibration and radiation tests. Google reported that components like the TPUs demonstrated the ability to withstand forces ranging from 50 to 100 times Earth's gravity. In radiation tests, the chips also resisted dose levels higher than those predicted for a five-year space mission. The company noted, however, that certain aspects can only be analyzed after placement in orbit.
Another technical challenge addressed is the cooling system. Due to the absence of airflow in a vacuum, traditional fan-based cooling methods are ineffective. To solve this, the company will test a combination of radiators and heat pipes to dissipate the heat generated by the chips.
Travis Beals, senior director of Project Suncatcher, detailed that the TPUs will be able to operate for about fifteen minutes before needing to be shut down for a cooling process. During this operational interval, the satellite should execute simple artificial intelligence queries.
This experiment represents only one phase within a long-term project. Google plans to place two additional satellites into orbit in 2027, aiming to test other technologies, including communication between equipment via lasers.
In future stages of the project, the satellites could be equipped with dozens of TPUs and operate in mutual proximity to process larger volumes of AI tasks. The energy requirement to sustain this infrastructure is a key factor in Google's interest in the space sector.
The company points out that satellites in low Earth orbit have access to near-continuous sunlight, allowing for up to eight times more solar energy generation compared to equivalent ground installations.
However, transforming these tests into a large-scale computing infrastructure still requires time. James Manyika, Senior Vice President of Research at Google, told the American newspaper that the company does not foresee having a fully operational system in the coming years.
The satellite scheduled for launch in October should operate for approximately one year for the project's experimental purposes, although it has the potential to remain in orbit for up to six years before re-entering the atmosphere.