![](https://image.tmdb.org/t/p/original/jlPPwRB2WX21j8A0qzw5ixUpWwO.jpg)
![](https://image.tmdb.org/t/p/w342/6PszgaH7rYC9TaBypZTMw2J603N.jpg)
The Original Martian Invasion
Bill introduces the theory of panspermia, NASA scientists discuss the Mars 2020 mission, and Wil Wheaton and the panel ponder life on other planets.
![](https://image.tmdb.org/t/p/w300/y9iOu3HjTpuMNjJAZD3UbTNu0IR.jpg)
![](https://image.tmdb.org/t/p/w300/9tYQ7Doo5I9Id02jkb8Ubz985dh.jpg)
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Other episodes for this season
![Earth Is a Hot Mess](https://image.tmdb.org/t/p/w300/3V4MMoBHEAgSUSCfHopMgdnLdU9.jpg)
![Tune Your Quack-o-Meter](https://image.tmdb.org/t/p/w300/lZnDaVfnfistvUSkeJBRZTGhlCj.jpg)
![Machines Take Over the World](https://image.tmdb.org/t/p/w300/pT2rItOtYClga8evSxct0yFTh4N.jpg)
![More Food, Less Hype](https://image.tmdb.org/t/p/w300/q4Ugr7o0hbi8RTjOlO4HAMNlIYh.jpg)
![The Original Martian Invasion](https://image.tmdb.org/t/p/w300/jlPPwRB2WX21j8A0qzw5ixUpWwO.jpg)
![Do Some Shots, Save the World](https://image.tmdb.org/t/p/w300/vJlIOSFXVCsAVuP8QmyDoWvYXRz.jpg)
![Cheat Codes for Reality](https://image.tmdb.org/t/p/w300/gF6lNfqYqv9nJtancyZi8jNkgkw.jpg)
![This Diet Is Bananas](https://image.tmdb.org/t/p/w300/rEqYfozbtkS6OmzAggv4yyDWtXh.jpg)
![The Sexual Spectrum](https://image.tmdb.org/t/p/w300/gxaowTPNNp72zJ2U49543nk0SHm.jpg)
![Saving the World -- with Space!](https://image.tmdb.org/t/p/w300/wcWm6JBhPO5pNRCyQEmbZuvM0S1.jpg)
![Malarkey!](https://image.tmdb.org/t/p/w300/m2rVqpdiRLJoPXb8y9mOn3EUiSb.jpg)
![Designer Babies](https://image.tmdb.org/t/p/w300/vXufaWGzdvHS2USmsJXe7hu5yZ6.jpg)
![Earth's People Problem](https://image.tmdb.org/t/p/w300/gvLXhBasGlb6ApFe96xLLDnxoSr.jpg)
Bill introduces the theory of panspermia, NASA scientists discuss the Mars 2020 mission, and Wil Wheaton and the panel ponder life on other planets.