Mystery of the Ashen Light of Venus

John Barentine currently serves as the Director of Public Policy for the International Dark Sky Association (IDA) in Tucson, Arizona. He grew up in the Phoenix area and was involved in amateur astronomy there from early on. Later, he attended the University of Arizona, doing research at the National Optical Astronomy Observatories and National Solar Observatory headquarters in Tucson. From 2001-06 he was on the staff of Apache Point Observatory in New Mexico, serving first as an observing specialist on the Astrophysical Research Consortium 3.5-m telescope and then as an observer for the Sloan Digital Sky Survey.

John obtained a master's degree in physics at Colorado State University and a master's and doctorate in astronomy at the University of Texas at Austin. John has contributed to science in fields ranging from solar physics to galaxy evolution while helping develop hardware for ground-based and aircraft-borne astronomy. Throughout his career, he has been involved ineducation and outreach efforts to help increase the public understanding of science. In addition to his work for IDA, John is a member of the steering committee of the University of Utah Consortium for Dark Sky Studies and serves on light pollution committees of the American Astronomical Society and the International Astronomical Union. In 2018, he was elected a Fellow of the Royal Astronomical Society.