Adler Planetarium is a good astronomical museum. This time, the ticket included a movie. The ninth planet was chosen. The three-dimensional projection technology on the big screen in the spherical theatre is very lifelike and fascinating. It is worth recommending. There are also many interactive projects worth experiencing in the planetarium, and children will like them very much. The Astronomical Museum itself is not very large. It is recommended to spend one to two hours. One of the projects that impressed me most was that I could operate my own robots on Mars. It was interesting.