John Glenn
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Astronaut John Glenn marks 50 years since first orbit

Former astronaut and Senator John Glenn celebrated the 50th anniversary of his Earth orbit by chatting with the crew on the International Space Station.

Mr Glenn, 90, was the first American to orbit the Earth, and later became the oldest person to travel in space.

BBC's Jane O'Brien looks back at a major landmark in the space race.

  • 21 Feb 2012
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