NIGHTLIFE: Stars seem to stream across the sky above the University’s C. E. K. Mees Observatory in a long-exposure photograph taken this summer. Administered by the Department of Physics and Astronomy, the observatory is located about 40 miles south of Rochester in the Bristol Hills. While the department uses the facility to teach undergraduates in introductory astronomy classes and to conduct some studies in visible wavelengths, most current University astrophysical research relies on larger telescopes based on mountain observatories or in space. Named for a longtime director of research at Eastman Kodak Co., the observatory is open for public tours in June, July, and August.