The Challenger Learning Center Space Mission Simulator offers visitors the next best thing to actual space flight with a Mission Control room designed after the NASA Johnson Space Center and Space Lab modeled after the laboratory on the International Space Station. During a space mission, astronauts in the Space Lab Simulator work with their counterparts in the Mission Control Simulator to fly one of three simulated space missions: Rendezvous with a Comet, Return to the Moon and Earth from Orbit.