The STS-134 crew checks out the heat shield tiles that protect space shuttles during re-entry.

In the Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, the STS-134 crew checks out the heat shield tiles that protect space shuttles during re-entry. From left, are Mission Specialists Greg Chamitoff and Andrew Feustel, Pilot Gregory H. Johnson, Commander Mark Kelly and Mission Specialist Roberto Vittori of the European Space Agency. The six STS-134 astronauts are at Kennedy participating in the Crew Equipment Interface Test (CEIT), which gives them an opportunity for hands-on training with the tools and equipment they'll use in space and familiarization of the payload they'll be delivering to the International Space Station.

Space shuttle Endeavour is targeted to launch on the STS-134 mission Feb. 27, 2011. For more information, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Cory Huston