Could the US's Space Data Center Plan Be a New Solution for the AI Era?
A 12-fold increase in global data is expected to herald a major infrastructure transformation. Musk and Bezos' vision of a "space-based AI infrastructure" is drawing attention for its industrial significance. The new infrastructure crisis brought about by the AI era is creating a new level of data in the world. The amount of information generated by AI services, streaming platforms, self-driving cars, e-commerce logistics systems, satellite imagery, financial systems, and billions of IoT devices is already at an all-time high. Large-scale AI models, in particular, not only require massive amounts of data during the training process, but also demand enormous power and computing resources during their operation. Statista, an industry statistics firm, projects that global data generation will increase from 175 zettabytes (ZB) in 2025 to 2142 ZB in 2035. Considering that one zettabyte is 10²¹ bytes, equivalent to the data volume of 40 billion Netflix movies, this figure is beyond imagination at present. In this environment, existing terrestrial data centers are finding it difficult to cope with the exploding demand. Data centers already consume more electricity than the entire power consumption of small and medium-sized countries, and the increased cooling water usage is fueling environmental regulations and community opposition. Competition for suitable sites is also intensifying, power grids are reaching saturation, and in some regions, large-scale data center projects are being canceled or even suspended altogether. With a growing recognition that existing data center methods, which require both power and land, cannot keep pace with the growth of the AI era, companies are now concluding that they must change their methods altogether. The concept of the "space data center" is the answer. Space offers "conditions unavailable on Earth." Data centers in the AI era require massive power consumption, highly efficient cooling systems, and the ability to scale rapidly to meet growing demand. Meeting these requirements on Earth is becoming increasingly difficult. However, space offers a rare environment that can satisfy all three requirements. Its greatest advantage is the 24-hour supply of sunlight. While this varies depending on altitude, a certain orbit provides stable sunlight undisturbed by weather conditions. The ability to eliminate the "irregularity" of terrestrial solar power generation is particularly attractive in the AI era, where energy costs are skyrocketing. Space also offers exceptional cooling efficiency. Terrestrial data centers, even utilizing various technologies like bypass cooling and immersion cooling, ultimately require massive amounts of water. However, because space is a vacuum, heat can be directly released into space via radiative cooling. This theoretically means that ultra-efficient cooling systems can be built without water, fundamentally resolving the limitations of terrestrial data centers due to cooling issues. Another advantage is the virtually infinite space of space. While securing data center sites on Earth is becoming increasingly difficult due to numerous issues, including local regulations and environmental concerns, such constraints do not exist in space. Unlike on Earth, where infrastructure grows larger, leading to increased local opposition and conflict, in space, it is theoretically possible to expand the scale of infrastructure by tens or hundreds of times. SpaceX Starship/Starlink-based 'Orbital Computing Network' Construction According to Ars Technica, an American technology media outlet, Elon Musk, who leads SpaceX and Tesla, has stated that "SpaceX will actually operate an orbital data center in the future," and is pursuing this concept not as a simple experiment but as an active business strategy. His plan goes beyond simply putting servers into space, and is closer to converting the entire universe into a single, massive computing infrastructure. Musk's vision is to integrate the three elements of 'Starlink + Starship + AI infrastructure' into a single, ultra-large system. Starlink is already building a global, ultra-low latency low-orbit communication network through more than 6000 satellites, and is enhancing its performance by introducing optical communication (laser link) that minimizes data transmission delay. Starship is a next-generation rocket that can repeatedly and inexpensively launch ultra-large cargo, and in the future, it will act as a 'truck' to carry the data center module itself into space. Musk says, "Once Starship is fully commercially viable, the cost of launching data center modules into space will be competitive with the cost of building terrestrial data centers." This concept is central to a grand future strategy that connects his AI company xAI, Tesla's autonomous driving network, and SpaceX's global communications network. In other words, Musk believes a space-based AI cluster will be more powerful than any data center operating on the ground. Amazon's Jeff Bezos envisions the future. Amazon's Jeff Bezos is also very realistic about the possibility of space data centers. U.S. news outlets U.S. News & [...]
