The Threat of Light Pollution from Satellites to Astronomy

Astronomers have warned that the increasing number of satellites orbiting Earth is causing unprecedented light pollution, threatening the future of their profession and humanity's ancient relationship with the night sky. The proliferation of mega-constellations of satellites, which are set to increase further, also increases the risk of collisions and the creation of space debris. Astronomers are calling for drastic limits on mega-constellations and the possibility of banning them to protect the natural night sky and cultural heritage.