In the Orbiter Processing Facility at NASA's Kennedy Space Center, STS-125 Mission Specialists Mike Massimino, Megan McArthur and Andrew Feustel stand underneath space shuttle Atlantis during the crew equipment interface test. The CEIT provides hands-on experience with hardware and equipment for their mission. Atlantis is targeted to launch on the STS-125 Hubble Servicing Mission 4 on Oct. 8. Photo credit: NASA/Kim Shiflett