Tyler Nordgren is a Professor of Physics and Astronomy at the University of Redlands. Prior to arriving at Redlands in 2001 he was an astronomer at both Lowell Observatory and the U.S. Naval Observatory in Flagstaff, Arizona. He earned his PhD in astronomy from Cornell University in 1997 for work on dark matter in interacting spiral galaxies. In addition to publishing roughly two dozen peer reviewed scientific articles he is also the author of “Stars Above, Earth Below: A guide to astronomy in the national parks,” a popular science book dedicated to revealing what visitors to America’s national parks can observe in a dark night sky. Since 2007, Dr. Nordgren has worked closely with the U.S. National Park Service Night Sky Program to promote astronomy outreach and night-sky preservation in national parks. Dr. Nordgren has helped document this vanishing landscape with award-winning artwork and night sky photography that has been on display in galleries from New York City to Flagstaff, Arizona and has been used in a number of national parks. He is a past-member of the Board of Directors for the International Dark-Sky Association. In 2012, NASA’s Curiosity rover joined Spirit and Opportunity on Mars carrying sundials, or “Marsdials” which Dr. Nordgren helped design with a team of seven other scientists and artists. His new book on the Great American solar eclipse of 2017 is coming out next year.