Cindy Luongo Cassidy of DarkSky Texas will be the speaker for the Georgetown Astronomy Club meeting.

Are we ignoring half of the conservation work that needs to be done? Cindy will explore the natural world and its processes that depend on the absence of artificial light. Living things need natural darkness for navigation, reproduction, circadian rhythms, photoperiodism, competition, predation, and general habitat protection. We humans need it too. Learn what we can do to extend our conservation work to the nighttime.