A short, 7 minute full dome show about light pollution. Starry skies are a vanishing treasure because light pollution is washing away our view of the cosmos. It not only threatens astronomy, it disrupts wildlife, and affects human health. The yellow glows over cities and towns — seen so clearly from space — are testament to the billions spent in wasted energy from lighting up the sky. Losing The Dark introduces and illustrates some of the issues regarding light pollution, and suggests three simple actions people can take to help mitigate it. This show is presented in breathtaking fulldome splendor and is offered without charge to school and other field trips as a prequel to their selected shows.