Aasif Mandvi fills in for Leonard as today's guest host! He's an actor and a comedian best known for his work as a correspondent on The Daily Show.
Staff Sergeant Joe Hickman discusses investigating suicides at Guantanamo Bay. Master cartoonist and former Harvard instructor Larry Gonick talks about his book The Cartoon Guide to Algebra. Vikram Gandhi talks about the upcoming season of HBO’s Vice. Chief Astronomer at The Franklin Institute Science Museum, Derrick Pitts, teaches us about the Mars Rover, black holes, and more!