Join the discussion

National Geographic Adventure is pleased to provide this opportunity for you to share your comments about this article. Thanks for taking the time to offer your thoughts.

I've had the privilege while working at NASA to know a lot of astronauts and when it comes to John Grunsfeld the saying some may equal, none excel comes to mind. He is a terrfic astronaut, mountain climber and advocate for exploration in the great National Geographic tradition. This honor is well deserved.
Posted by: Edward Goldstein
25/11/2009 09:23 AM