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Nature 436, 163 (14 July 2005) | doi:10.1038/436163a; Published online 13 July 2005

Time to move on from shuttle, says astronaut

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Tony Reichhardt talks to former spaceman George 'Pinky' Nelson about NASA's future.

As Nature went to press, the space shuttle Discovery was poised for a 13 July launch in the first shuttle mission since Columbia burned up on re-entry in February 2003. NASA managers have done their best to fix the problems that led to the disaster, but the 21-year-old vehicle still faces significant risks.

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