KENNEDY SPACE CENTER, FLA. - During Crew Equipment Interface Test (CEIT) at NASA’s Kennedy Space Center, STS-121 crew members look at panel assemblies that hold laptop computers in place while in space. From left are Pilot Mark E. Kelly, Commander Steven W. Lindsey, and Mission Specialists Piers J. Sellers, Michael E. Fossum, Lisa Nowak and Stephanie Wilson. STS-121 is the second Return to Flight mission to the International Space Station. During CEIT, the crew has an opportunity to get a hands-on look at the orbiter and equipment they will be working with on their mission. Mission STS-121 is scheduled to launch aboard Space Shuttle Atlantis in July.