Scott Carpenter, one of America's first astronauts, who served as a backup pilot for John Glenn, and then later became an underwater ocean explorer, died in Denver at the age of 88. Charlie Rose ... more 
Scott Carpenter, one of America's first astronauts, who served as a backup pilot for John Glenn, and then later became an underwater ocean explorer, died in Denver at the age of 88. Charlie Rose reports. less 
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Fri, Oct 11, 2013 12:37 PM EDT