Lots of interesting stuff to see and do. Well designed for folks of all ages. From the IMAX theater to Atlantis and the astronaut experience is well done with mostly the genuine articles and participatory displays. Had to knock off a star for several reasons.
1. Bring your own food and drink, plenty of outdoor seating with tables... food at park is horrible and water is $4 for 16oz
2. Center is only open for 6 hours. Arrive at least an hour before park opens. You will need the full 6 hours to see/do everything. Traffic on entry parkway can be backed up for at least 1 1/2 miles or more.
Be glad the folks running the center do not run the space program... we would never have got to the moon. Traffic control for park entry is non-existent. Poorly done.
3. Buying the VIP launch viewing tickets has its risks. If the launch gets canceled, there is no refund. You will get a voucher for the equivalent $$ in the gift shop. Do you really need $45 worth of coffee mugs, thimbles, or key chains?
4. Skip the nature center. You can see this stuff anywhere for free.
Seriously, the center is well worth the visit.