Elon Musk responds to space data center discussions, emphasizing SpaceX's advantage of over 10k satellites in orbit.

BlockBeats News, June 16 — The discussion around "the engineering feasibility of heat dissipation in space data centers" continues to ferment. User XFreeze posted that space data centers are not science fiction; their core relies on proven thermodynamics and aerospace engineering systems, rather than new physical breakthroughs.

This post explains in detail that on Earth, data center cooling mainly depends on air convection, water cooling, fans, and cooling towers. In a vacuum environment, heat cannot be dissipated through convection or conduction to the outside, so a completely different approach must be used: directing the heat generated by chips into a liquid cooling circulation system, pumping it into large radiators, and then releasing heat into deep space via infrared radiation. This process fundamentally follows the Stefan-Boltzmann law, which states that radiated power is proportional to the radiating area, emissivity, and the fourth power of temperature.

This mechanism is not a theoretical concept but a mature technology system long used by spacecraft such as the International Space Station (ISS). The ISS uses pump-driven cooling loops and large external radiators to continuously radiate heat generated by equipment and life support systems into space. The only difference is in scale and power density, not in the physical principles themselves.

Based on this, the user believes that the engineering challenge of "space data centers" is not about physical feasibility but about system-level scalability, including how to deploy large-area radiators in orbit, how to improve material temperature resistance, how to optimize liquid cooling efficiency, and how to match continuous, stable power input with communication links. He points out that SpaceX's ongoing "AI1" orbital data center concept relies on deployable large liquid cooling structures and high-power solar energy systems to address the coupling of computing power and thermal management.

Subsequently, Elon Musk responded that SpaceX has over 10k satellites in orbit, "far surpassing the combined scale of all other space systems," giving the company extensive experience in orbital system operation and space infrastructure. He did not directly comment on the specific design of space data centers, but this statement was interpreted by the outside world as emphasizing SpaceX's on-orbit engineering capabilities and experience in large-scale system deployment.