This was an interesting museum. Not what I expected. Although I had no idea what to expect. Tons of educational value here if you want to sit and read every sign, and watch all the little movies. We weren't into it that much, but enjoyed the museum. Lots of interesting artifacts and machinery to look at. We spent about 45 minutes in the museum. It was not crowded. The docents were very friendly.
The Area 51 Alien artifact exhibit was dumb. I think even if you are into that sort of thing - it was not very interesting at all. We had a groupon and it was included. If I had paid for it, I would not have been happy, 1 star for that exhibit.