Do we need to send humans into space? Won't robots soon be smart enough and capable enough to do this dangerous work for us? These and other questions are explored by Martin Rees, Britain's Astronomer Royal, and astrophysicist/science author Donald Goldsmith in their thought-provoking new book, "The End of Astronauts: Why Robots are the Future of Exploration." They present their arguments in this week’s show. Then we climb Mount Kaplan with Bruce Betts to learn who has won the weekly space trivia contest. Discover more at https://www.planetary.org/planetary-radio/2022-goldsmith-rees-end-of-astronauts

Book Club Edition: Dinner With an Astronaut by Leroy Chiao
1:14:20

From the Mojave to Phobos: PlanetVac rides with MMX
1:04:21

Space Policy Edition: What does “science as a service” really mean?
1:17:02