When was the last time you looked up at the stars on a clear, dark night, far away from streetlights? Artificial light at night has become ubiquitous and harms virtually every kind of living creature that's been studied, from insects to migratory birds, mammals, fish, trees, crops, and even coral and plankton. Join us as James Lowenthal, Professor of Astronomy at Smith College, leads us on a multi-faceted virtual tour of the night-time environment and how important natural darkness at night is for all species, including humans -- and how beautiful and magical it is. Learn what we can do to bring back the stars while supporting the health of all ecosystems.