There were so many incredible things to see, like the mission control center as it was during the moon landing. The space shuttle on the 747 airplane that transported it. And on and on. For me, though, surprisingly, the most touching thing was the film we watched in the theater featuring astronauts who've been in space and their impressions of their views of planet Earth and how spectacular it looked, how vivid the colors were, and how it impacted their perspectives. This center has such wonderful exhibits and displays. Anyone going to Houston to visit really must plan for a visit there. We wished we had additional time, so need to return one day!