Mission Specialist Paolo Nespoli talks with Shuttle Launch Director Mike Leinbach after the crew's arrival.

STS-120 Mission Specialist Paolo Nespoli (left) talks with Shuttle Launch Director Mike Leinbach after the crew's arrival at NASA's Kennedy Space Center. Nespoli represents the European Space Agency. The crew has returned to Kennedy to prepare for launch aboard space shuttle Discovery at 11:38 a.m. EDT on Oct. 23. The mission will be the 23rd shuttle flight to the International Space Station, delivering the Italian-built U.S. Node 2, called Harmony. The 14-day mission includes five spacewalks -- four by shuttle crew members and one by the station’s Expedition 16 crew -- to install Harmony and move the P6 solar arrays to their permanent position and deploy them. Discovery is expected to complete its mission and return home at 4:47 a.m. EST on Nov. 6. Photo credit: NASA/Kim Shiflett