Podcast Machine

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The second episode of the podcast by @sciencemug tells you that a direct link can exist among catastrophic geologic events, comet impacts, mass extinctions and the Earth crossing, every 30-40 million years, the Milky Way’s mid-plane and its clumps of dark matter. And then buy you donuts to cheer you up... Read the text here: http://goo.gl/wqItu8 ciaz SM