Orbital Data Centers: A Bright and Disruptive Future?

The increasing power demands of artificial intelligence are driving proposals to place computing infrastructure in sun-synchronous low-Earth orbit (LEO), where continuous sunlight could supply electrical power. However, the construction of such facilities poses significant challenges. Generating 5 GW would require solar arrays 4 x 4 kilometers in size. These structures, orbiting at roughly 500 km altitude, would dramatically alter both the night and daytime sky. A 4 x 4 km array in LEO would span about 0.4 degrees, comparable to the Moon, and reflected sunlight would make it shine at magnitude g = -5 to -7, 100 times brighter than the brightest stars. Dozens of these structures would appear as a north-to-south chain of industrial objects across the sky, visible for about 1 1/2 hours after sunset and 1 1/2 hours before sunrise. They would block stars, planets, and deep-sky objects for minutes at a time, while increasing the likelihood of collisions that could trigger runaway debris production. These orbiting computing facilities therefore pose serious astronomical, technical, and cultural concerns. Mitigation strategies and international regulations are needed to address these potential impacts.

_Context: This intelligence report was compiled by the DailyOrbitalWire Strategy Engine. Verified for Art. 50 Compliance._