Welcome back to StarTalk hosted by renowned astrophysicist Neil deGrasse Tyson. Neil & co-host Eugene Mirman are joined by Jim Gaffigan, Sarah Silverman and astrobiologist David Grinspoon at the Bell House in Brookyn to discuss the the Curiosity Mars Rover and the exploration of Mars.
Guests: Jim Gaffigan, Sarah Silverman, David Grinspoon, Eugene Mirman
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