Roberto Vittori during CEIT

In Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida, the STS-134 crew and technicians check space shuttle Endeavour's payload bay for sharp edges that could affect the astronauts' work in space. Seen here, from left, are a technician, Roberto Vittori with the European Space Agency, and another technician and astronaut. The six STS-134 astronauts are 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. Endeavour is targeted to launch on the STS-134 mission 29 April 2011.