Houston: City Tour and NASA Space Center Admission Ticket Day Tours

<p>Houston Space Center (SpaceCenterHouston) and NASA Johnson Space Center (NASAJohnsonSpaceCenter) should be said to be two places, but inseparable. Johnson Space Center is the largest aerospace research, production and control center in the United States. American space rockets and space shuttles are launched in Florida, but all control is done here. This is, of course, the control center for the 1969 moon landing. So the first word humans said on the moon was "Houston", so much so that now people joke about "Houston, wehave aproblem" (Houston, we're in trouble).</p>