“Dark Skies and Why They Matter” Electric lights were introduced less than 150 years ago. In that short time, star-filled night skies have largely disappeared from all populated areas, including Fredericksburg. However, with prudent use of non-glare lighting, it is possible to have both dark night skies and safe streets. In this class, Bridget Langdale teaches how to save money and energy, increase personal safety, help wildlife and plants thrive, and keep our night sky dark and stars s ...