The International Space Station (ISS) is a low-flying research facility jointly operated by the space agencies of the U.S., Russia, Canada, Japan, and eleven European countries.
In its twenty-five-year history, NASA's Space Shuttle program (officially called Space Transportation System or STS), has flown more than one hundred missions. It has enjoyed extraordinary success (such as the building of the International Space Station,
As I write this, STS-115 (Space Shuttle Atlantis) is on its way to the International Space Station.
