A group of scientists have biweekly informal discussions about evolutionary biology and palaeontology... over beer.
http://www.palaeoafterdark.com
Podcast 82 - So Like Majora's Mask; Astrobiology and Cyclicity of Extinction
In this episode, we wanted to discuss large-scale astrobiological patterns and cyclicity of extinction, but instead we picked a few papers that weren't directly focused on those themes. So join us as we talk around two astrobiology papers! Meanwhile, James nearly becomes a mass extinction, Curt considers the psychological health of the hero of Hyrule, and Amanda gives her cat some tough love.
References:
Nimura, Tokuhiro, Toshikazu Ebisuzaki, and Shigenori Maruyama. "End-cretaceous cooling and mass extinction driven by a dark cloud encounter."Gondwana Research (2016).
Whitmire, Daniel P. "Periodic mass extinctions and the Planet X model reconsidered." Monthly Notices of the Royal Astronomical Society: Letters455.1 (2016): L114-L117.