Before blasting off, astronauts acquire a set of very high-level skills. But to really have the right stuff, you’ve also got to master basic hygiene in zero gravity. Colonel Terry Virts is a former commander of the International Space Station, and he joins host Krys Boyd to provide a behind-the-scenes look at daily life hovering miles above humanity.  His new book is “How to Astronaut: An Insider’s Guide to Leaving Planet Earth.”