 Sticking on the topic of space this hour, our next guest sure knows a lot about it. She has spent more than 4,000 hours in space and been part of three NASA missions, including a six-month mission to the International Space Station that launched one day after her 50th birthday. Now retired, Katherine Coleman breaks down the insights she found essential to her success. It's all in her book, Sharing Space, an astronaut's guide to mission, wonder, and making change. She joined me along with Bloomberg's Katie Greifeld.