Space Center launches long-awaited open house

It takes a week for Pluto to rotate around its axis. Mars circles the sun once every 23 months. But when it comes to long-awaited events, NASA has both planets beat: It’s been five years since NASA’s Johnson Space Center last opened its gates to the public. The line of cars waiting to drive onto NASA’s campus stretched down Saturn Lane Saturday morning as people awaited the chance to tour facilities where astronauts train and engineers work on everything that makes space travel