Atlantis and its four astronauts left Earth for the final space shuttle mission, which will cap off an amazing 30-year program of exploration, which launched great observatories, built an International Space Station, and taught us more about how humans can live and work in space.

With the International Space Station flying 220 miles [...]

A crew member onboard a Nasa space shuttle training aircraft took this photograph of the launch of the space shuttle Endeavour as it emerges through the clouds above the Kennedy Space Center, Florida.

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