Neil deGrasse Tyson Takes The Colbert Questionert | Colbert Classic

If you don't know about his connection to Joan Rivers, or where he stands on the "is a hot dog a sandwich" debate, do you really know Neil deGrasse Tyson? Stephen finds out what makes America's favorite astrophysicist tick in this edition of The Colbert Questionert. Learn more about your ad choices. Visit megaphone.fm/adchoices