Big Astronomy” showcases Chile’s grand observatories and the people who push the limits of technology and what we know about the universe using world-class telescopes. Admission: $7.00 adults, $5.00 children, students, seniors and military. Delta College Planetarium & Learning Center, 100 Center Ave., Bay City. Time: 2:00 PM to 3:00 PM. Phone 989-667-2260