With Kibo's installation, the space station is about 71 percent complete, has a mass of 277,598 kilograms and has a living area about the size of the interior of a Boeing 747 jumbo jet. Discovery's landing marked the end of NASA's 123rd space shuttle mission and the 26th construction flight to the space station. Discovery made its 35th trip to space. It also was the 10th mission since the 2003 Columbia tragedy.
NASA plans to fly 10 more shuttle flights to complete the space station and overhaul the Hubble Space Telescope before retiring its aging three-orbiter fleet in 2010.
http://www.space.com/spacenews/spacenews_summary.html#BM_4
