Share Challenges of Spacewalking — Peggy Whitson04:33 0 Share 0 Likes 0 Dislikes Published on April 5, 2017 How does astronaut Peggy Whitson correctly align a high-pressure metal tube filled with ammonia? Category: #Video Submitted by: Admin Tags:Challenges, Peggy, Spacewalking, Whitson About The Author Admin Related Posts