還是 AI Overview較公道：千頭萬緒的太空 Data centers. 英文版 Data centers in space have moved from theoretical concepts to early-stage, high-stakes prototyping, driven by the intense energy and cooling demands of AI. While proponents argue they offer unlimited solar power and passive cooling, major technical and economic hurdles remain before they become a viable alternative to terrestrial facilities.

 

AI Overview

Data centers in space have moved from theoretical concepts to early-stage, high-stakes prototyping, driven by the intense energy and cooling demands of AI. While proponents argue they offer unlimited solar power and passive cooling, major technical and economic hurdles remain before they become a viable alternative to terrestrial facilities. 

Current Status and Key Players (2025-2026):

• Prototypes: Startups like Starcloud have already demonstrated, or plan to launch, satellites equipped with GPUs for orbit-based AI computation.
• Major Tech Interest: Google is pursuing "[Project Suncatcher]," aiming to test prototype satellites in Low Earth Orbit (LEO) by early 2027.
• SpaceX/Starlink: Elon Musk has indicated that future, scaled-up V3 Starlink satellites could function as data centers.
• Feasibility Studies: The European Commission has funded research (e.g., the ASCEND project) investigating the viability of deploying 10-megawatt data centers in orbit. 

Proposed Advantages:

• Abundant Energy: Constant access to solar energy in orbit avoids the constraints of the terrestrial power grid.
• Efficient Cooling: The vacuum of space allows for potential cooling via radiator panels, eliminating the need for vast amounts of water used in Earth-based data center cooling.
• Regulatory Freedom: Offers an alternative to the increasing difficulty of securing land and permits for data centers on Earth. 

Significant Challenges:

• High Costs: Launch costs, despite falling, remain prohibitive. Experts suggest space data centers could be 7 to 10 times more expensive per gigawatt capacity than on Earth.
• Technical Hurdles: Hardware must withstand intense radiation, microgravity, and high heat while operating in a vacuum.
• Maintenance & Debris: Repairing in-orbit satellites is challenging. Increasing congestion in low Earth orbit raises risks of collisions with space debris.
• Latency & Data Transfer: High-speed, high-volume data transmission from orbit to ground is still complex and potentially inefficient compared to terrestrial networks. 

Timeline Outlook:
While some companies aim for small-scale operations by 2027, most experts view large-scale, commercial-scale orbital data centers as a prospect for the 2030s or even decades away.