In a groundbreaking effort to reduce light pollution, the USTA Billie Jean King National tennis Center at the US Open features innovative wedge-shaped LED lamps that illuminate players while minimizing environmental impact. Recognized as the only professional sports venue certified by DarkSky International for its commitment to preserving the night sky, the complex has replaced traditional metal halide lighting on its 17 tournament courts and practice areas over the past decade. This initiative is part of a broader trend across North America, where schools and local parks are also adopting dark sky-friendly lighting. While renovating to accommodate these eco-friendly solutions may incur an additional 5% to 10% in costs, they play a crucial role in protecting wildlife and enhancing visibility of the stars.