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By PBS NewsHour
The space shuttle Atlantis docked with the International Space Station Monday in preparation for attaching a 45-foot truss with new solar arrays to the orbiting research facility.
NASA has awarded a multibillion dollar contract to Lockheed Martin to build a manned spacecraft to replace the retiring space shuttle fleet and ferry astronauts to the moon and possibly Mars.
Top international astronomers voted Thursday to strip Pluto's planetary status that it has held since its discovery in 1930. The celestial object is now redefined as a "dwarf planet," leaving just eight major planets in the solar system.
Space shuttle Discovery and a crew of six safely landed at Kennedy Space Center in Florida Monday morning after a smooth 13-day mission to the International Space Station.
After two delays and a year of troubleshooting, NASA successfully launched the space shuttle Discovery Tuesday sending seven astronauts to the International Space Station.
NASA officials deemed the space shuttle Discovery "in excellent shape" Wednesday, hours before the countdown began for Saturday's launch, despite internal disagreements over whether loosened foam will continue to be a problem.
China successfully launched two astronauts into Earth orbit Wednesday two years after making its first foray into human spaceflight.
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