That's cool about your wife's job! Is there an admission fee to get into your planetarium? Both of ours are free, but some special exhibits or features, like going to see whatever's on the IMAX at the science center, will have a fee. St. Louis is unique in that we have a ton of major attractions that are all free. Zoo, art museum, history museum, Arch (and museum), etc... It's a wonderful thing, and very rare. It allows people of all income levels to experience awesome stuff! Even at the art museum they have Free Fridays all day/night, which means you don't have to pay for the special exhibit. I've seen some great ones, and always for free!