The mechanism moves the multi-purpose logistics module Leonardo toward Discovery's payload bay.

On Launch Pad 39A, the payload ground-handling mechanism moves the multi-purpose logistics module Leonardo toward space shuttle Discovery's payload bay. Leonardo is the primary payload on Discovery's STS-128 mission to the International Space Station. Discovery will deliver 33,000 pounds of equipment to the station, including science and storage racks, a freezer to store research samples, a new sleeping compartment and the COLBERT treadmill. Launch is targeted for late August. Photo credit: NASA/Jack Pfaller