Cool Worlds (Columbia University)

Stop the Dumbest Mega Constellation

An urgent video warns that startup Reflect Orbital intends to launch 50,000 highly reflective satellites over the next decade to beam sunlight back to Earth’s night side for power. The plan would flood the sky with artificial light far brighter than a full moon, creating a glow comparable to 650 football stadiums and delivering 5‑kilometer‑wide beams over neighborhoods. The presenter cites data showing each satellite’s brightness, the scale of atmospheric Rayleigh scattering, and the projected disruption to circadian rhythms and nocturnal species. He argues the scheme ignores environmental costs and would cripple astronomical observation, turning dark skies into perpetual twilight. Key quotes include, “It would be uncomfortable to look at,” and “environmental damage at a scale previously unimagined.” The FCC has opened a comment period until March 9, and the video provides links to an open letter, a petition, and a template comment to streamline public opposition. If the constellation proceeds, night‑time ecosystems, human health, and the scientific community could face irreversible harm. Mobilizing public comments could force regulators to reconsider or impose stricter lighting standards, preserving the night sky for future generations.