NASA astronaut Peggy Whitson's 5 tips for success

Peggy Whitson likes to break records. Late last year, the NASA astronaut set a new record for the most cumulative time spent in space — 665 cumulative days — by any U.S. astronaut, and any female astronaut in the world. She ranks eighth on the all-time space endurance list. Her most recent mission, Expedition 50/51, allowed Whitson to participate in four spacewalks, bringing her career total to 10. Her two previous missions to space comprised of two six-month tours of duty for...