Explores what it takes to be an astronaut and how spaceflight affects the human body. Experience the worlds of inner and outer space, from floating around the International Space Station to maneuvering through microscopic regions of the human body. Delta College Planetarium & Learning Center, 100 Center Ave., Bay City. Starts at 3:30 pm. Admission $7 adults/ $5 children & seniors. Phone 989-667-2260. Every Saturday thru March 25th.