Four members of the STS-130 Endeavour space shuttle crew visited NASA's John C. Stennis Space Center on March 25 to thank facility personnel for their role in enabling the successful February mission to the International Space Station. Commander George Zamka (l to r), Pilot Terry Virts, and Mission Specialists Kathryn and Robert Behnken presented a video recap of their mission and answered questions from Stennis employees about their work. Hire especially thanked Stennis employees for providing the three main engines that powered the crew on their 14-day mission. On their mission, the STS-130 crew delivered a third connecting module - the Tranquility node - that will increase the space station's interior space for crew members and many life support and environmental control systems. Attached to Tranquility was a cupola, a robotic control station with seven windows to provide a panoramic view of Earth, celestial objects and visiting spacecrafts.