Stranded astronauts say space is 'happy place' - but admit 'tough times'

Blast off and spend 24 hours in space with the astronauts who completed NASA's first ever all-female spacewalk! Christina Koch and Jessica Meir share an intimate look at their out-of-this-world routine on the International Space Station, revealing their health and hygiene habits, their daily assignments, and how they keep themselves entertained as they orbit the Earth.