STS-116 Pilot William Oefelein and Mark Polansky relax during equipment familiarization to talk to Marsha Ivins.

At SPACEHAB in Cape Canaveral, Fla., STS-116 Pilot William Oefelein and Commander Mark Polansky relax during equipment familiarization to talk to astronaut Marsha Ivins, who is currently assigned to the Astronaut Office, Space Station/Shuttle Branches for crew equipment, habitability and stowage. Mission crews make frequent trips to the Space Coast to become familiar with the equipment and payloads they will be using. STS-116 will be mission number 20 to the International Space Station and construction flight 12A.1. The mission payload is the SPACEHAB module, the P5 integrated truss structure and other key components. Launch is scheduled for no earlier than Dec. 7. Photo credit: NASA/George Shelton