While the National Air and Space Museum is more heavily favored towards airplanes, they do have some outer-space stuff. Here's an astronaut suit.
The scale of our planets. We tiny.
They had this digital globe where you could change it from Earth to anything.
Like the moon.
And Mars. Some kid had total control over it when we were there and he was doing a stupid job as he kept putting it mostly on these three without doing much of the other planets...