mj2015

I cruise November 2015. There are no excursions through carnival for galveston or nasa

My husband and i booked a last minute cruise out of galveston in November. We get it at 3pm the night before (to IAH as we arr coming from Canada) the cruise and There are no hotels in Galveston so we are looking where else to stay. We will not have a car and will not rent one. Should we stay near the airport and go back to the airport to take the cruise lines shuttle in the morning? My husband really wants to go to Nasa but how would that work? Take a taxi from the airport to hotel near nasa and do a couple of hours before taking another taxi to the ship? Or, as our flight out of texas lives at 5pm when we get backcan we see nasa on our way home? And vis taxi or bus? There are no excursions through the cruise line for galvestom so we'd have to do it on our own. Thanks for any suggestions!