Three fuel cells removed from Atlantis stand on tables in Orbiter Processing Facility 2 at NASA's Kennedy Space Center.

Three fuel cells recently removed from space shuttle Atlantis stand on tables in Orbiter Processing Facility-2 at NASA's Kennedy Space Center in Florida. The fuel cells produced electricity for shuttles in space by combining liquid oxygen and liquid hydrogen. They were removed as part of the ongoing work to prepare the shuttles for public display. The shuttle is being prepared for display at the Kennedy Space Center Visitor Complex. Photo credit: NASA/Jim Grossmann