Scott Parazynski: Astronaut, pilot, doctor, diver, climber

Published: Nov. 19, 2015, 7:26 a.m.

Scott Parazynski has flown 5 Space Shuttle Missions and has conducted 7 spacewalks.  He is also the first and only NASA astronaut to have summited Mt. Everest.  Katie and Sam Roberts have a fascinating discussion with Scott regarding the physical and mental challenges of life in space.