Rachel S.
Yelp
Salt Lake City has a free planetarium that we visited on Saturday. It's funded by aerospace & defense contractor Northrop Grumman, so even the snack bar and movie theater inside is heavily subsidized.
Don't expect a huge planetarium for free. This is on the small side, with the first floor dedicated to a gift shop, an exhibit on tornadoes and a collection of meteorites. The partial second floor is where the dome theater is located and a small exhibit on the weather in space and a plasma ball. The third floor has an area with remote controlled mini Mars rovers, an exhibit about black holes and a play space.
We visited on an early Saturday morning and it wasn't too packed until around 2 PM - then it became so busy it wasn't feesible to read the exhibits with so many people with strollers pushing in on you.
We ended up seeing two films for $9 each in their dome theater. The theater screen is a dome shape so it feels more immersive (smaller than the dome theater in San Jose, California.)
My only complaint is that the under 7 crowd shouldn't be permitted in the paid movie theater. If a child is too small to sit quietly for a half hour, then this isn't an age appropriate activity. Kids were screaming, talking and climbing on chairs through both the pre-movie night sky presentation and the films. If they're not going to bar small children from the paid movie, they need to offer an adult only showing (they have showings as late as 10:45 PM for their rock music films as is.)
I don't understand how entitled parents have become. If your kid is fussy, take them outside. If you're in a restaurant, a film, a museum, whatever, take them outside until they calm down. We all paid to be there and your kid doesn't have more of a right than the rest of us to be disruptive.