BrainStuff Classics: How Do Nutrients Get int...

Your heart needs blood as much as any other muscle in your body, and it receives it the same way -- just a little earlier than anyone else. Learn how the coronary arteries work (and what can go wrong when they don't) in this episode of BrainStuff, based on this article: https://h ...  Show more

Butterfly wings often come in striking, iridescent colors -- but it's not from pigments (or not entirely). Learn how microscopic structures give butterfly wings their flash in today's episode of BrainStuff, based on this article: https://animals.howstuffworks.com/insects/butterfl ...  Show more

Young Earth was hot and dry. Where did the oceans come from?

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Can we save the future of the human race with some thin membranes riddled with ultra-tiny holes? Science says yes! Thanks to reverse osmosis filtration, we can turn saltwater to fresh and finally say, Water, water everywhere so let’s all have a drink!

Life as we know it needs water, but scientists can’t figure out where Earth’s water came from. Answering that question is just one piece of an even bigger mystery: “Why are we here?” This is the first episode in our new three-part series, Origins, about the beginnings and boundar ...  Show more

Can gravity waves kill you? Why do we have particles? Can fission power a star?

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