International Space Station

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NASA

A few odd things noticed by shuttle Discovery astronauts aren't safety problems, NASA says. More

From a humble connection of just a few components, the international space station has grown into a sprawling space complex.

Take a look at the major activities of Atlantis' mission to the international space station.

For nearly five years, people have had a long-term home in space. Learn more about the international space station. More

NASA's space shuttles were, for many years, the only reusable space vehicles. Learn more about the history and the operation of space shuttles. More