Astrobiologist Dr. David Grinspoon and Leighann Lord answer questions from fans about Venus. NEW: 13-minute “Venusian Update” from Dr. FunkySpoon and Chuck Nice about Japan’s “never say die” Akatsuki orbiter and future US missions to our “Evil Twin.”
Find out what it’s like to be an astronaut in the age of social media when Neil deGrasse Tyson interviews Chris Hadfield. Eugene Mirman co-hosts, Astro Mike Massimino is back, and Bill Nye extols the human exploration of space.