It’s been over 5 years since Dr. Kyba was on the Get A Grip On Lighting podcast. Between then and now, we created Restoring Darkness which is a much more appropriate place for Dr. Kyba to be as his research is on skyglow and artificial light at night. He points out that when lighting up a building to make it an experience, it is no longer an experience when you do it EVERY NIGHT! We bet you’ve never thought of the dangers of attracting Mayflies to an illuminated bridge. You can take part in his research by joining the Nachtlicht-BüHNE project, or submitting measurements with the Loss of the Night app on an Android or iOS device. Christopher Kyba is a physicist at the GFZ German Research Centre for Geosciences and Ruhr University Bochum. He has worked on quantification of artificial light in the outdoor environment for over a decade, using ground, air, and space-based techniques, as well as citizen science. He obtained his PhD from the University of Pennsylvania in 2006, and his BSc from the University of Alberta in 2000.