The previous reviews sum it up well. I just want to add that the film HUBBLE in the IMAX theater was the most amazing and unbelievable film I have EVER seen. Get there at 10:00 when they open and view this film first. They have so much to see there and tons of information.
If you own or manage Smithsonian National Air and Space Museum Steven F. Udvar-Hazy Center, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.