The activity with Mars-like surroundings was supposedly very nice but this was 6 years ago according the to the guide who works in the museum. Today the interactive learning area is rather uninteresting but the NASA Exploration Center is still worth a visit. We visited it with a group of families and even kids who haven't turned 4 yet had a great time there.in reference to:
"Young people from ages 3 to 6 can 'explore' Mars and take part in Mars-related activities in an area with Mars-like surroundings and soil."
- NASA - INFORMATION (Please call to make reservations for large groups) (view on Google Sidewiki)