Visit an Observatory or Planetarium

Find a local observatory or planetarium, and check to see when it is open, or has a show that sounds interesting. Pretend like you are James Dean, in "Rebel Without a Cause" when his class goes to a planetarium. They are very cool. There is an observatory near my hometown that is absolutely beautiful, with ornate sea creatures on the outside, and it has a small gift shop and gallery, as well as a tour every Saturday morning.