The Russian-built Zarya module and the U.S.-built Node 1, also called Unity, were connected together ten years ago. Thus began one of the greatest international, technological, political, and engineering achievements in human history.
Ten years later, the station's mass has expanded to more than 627,000 pounds, and its interior volume is more than 25,000 cubic feet, comparable to the size of a five-bedroom house. Since Zarya's launch, there have been 29 additional construction flights to the station: 27 aboard the space shuttle and two additional Russian launches. NASA
Future launch dates and additions
Computer rendering of future ISS assembly
International Space Station assembly sequence and componant descriptions
Latest news from NASA International Space Station webpage