Astronaut Scott Kelly

S4 E19: Host Neil deGrasse Tyson interviews astronaut and former commander of the International Space Station, Scott Kelly. Tyson is joined by comedian co-host Chuck Nice, NASA astronaut Terry Virts and NASA biomedical scientist Jennifer Fogarty to discuss the science and biological challenges of extended human space flight. Chuck Nice shares his dispatch from New York City and Bill Nye tries on a space suit.