Is the Outer Space Treaty becoming a "League of Nations" for the cosmos?In a new Opinion piece for Frontiers, we argue that existing space governance isn't fit for the era of private satellite megaconstellations. To protect our shared heritage, we need a shift toward "Space Environmentalism."We still have the chance to build a future by design rather than by default—if we act before these norms are set in stone.Read more: https://www.frontiersin.org/journals/space-technologies/articles/10.3389/frspt.2026.1748406/full#SpacePolicy #Astronomy #SciencePolicy #SpaceEnvironmentalism