What will it take to send people to Mars and back safely? Find out from host Mike Massimino, co-host Maeve Higgins, and NASA’s John Charles. Now including Neil Tyson and Bill Nye in the Cosmic Crib talking about human vs. robotic exploration of Mars.
Now that climate change is beyond dispute, StarTalk All-Stars host Seth Shostak is joined by Ken Caldeira, climate scientist at the Carnegie Institution for Science, and co-host Eugene Mirman to talk about the impact on humans and social systems.
