New Vistas in Astronomy lecture featuring David Martin, Ph.D. Martin will discuss “Our Ever-Changing Understanding of the Cosmos” at Ohio Wesleyan’s Perkins Observatory, 3199 Columbus Pike (U.S. 23), Delaware. Tickets are $10 in advance or $12 on the day of the event and at the door. Reserve tickets by calling (740) 363-1257. Learn more at owu.edu/perkins.