Charles Darwin wasn't the first or only scientist to grasp the theory of evolution through natural selection, but he became its father and icon. In this classic episode, learn about the man who reluctantly but bravely became the source of the divide between religion and science.

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It turns out that lasers are even cooler than they look. And as far as acronyms go, they’re pretty solid in that respect too. There’s way too much cool stuff about lasers to tease here so listen to this old school SYSK episode and let lasers blow away.

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In the late 90s, a strange musical instrument was excavated under the streets of CDMX. Listen in to learn all about the Aztec Death Whistle.

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Humans have all sorts of weird quirks that cause us to do silly things and make bad decisions. It’s not our fault though. Our brains are wired that way. Learn about the psychology of cognitive biases in this episode.

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If look into the mythology of just about any culture in the world, you will find a myth about a great flood that destroyed humanity and submerged the Earth in the distant past. Does this mean that a great flood actually happened? Listen to this classic episode to explore the possibilities with Josh and Chuck.

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The Cajun Navy was formed after Hurricane Katrina and really got its legs after the Louisiana flood of 2016. They save a lot of lives, but some fear the pitfalls of "vigilante heroism." Learn all about this group of do-gooders today.

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Have you ever cried way longer than usual when you were in a yellow room? You’ve been smacked by color psychology my friend and it’s got your number.

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Helen Keller and Anne Sullivan were one of the most amazing non-magical duos in history. Imagine living trapped in your own mind – unable to see or hear – and then imagine learning to read, traveling the world, and becoming an ambassador of peace.

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