CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians begin to lower the cover of a shipping container that will enclose the orbital replacement unit for the space station's utility transfer assembly. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to lower the cover of a shipping container that will enclose the orbital replacement unit for the space station's utility transfer assembly. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians lower the cover of a shipping container that will enclose the orbital replacement unit for the space station's main bus switching unit. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians finish lowering the cover of a shipping container that will enclose the orbital replacement unit for the space station's utility transfer assembly. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann