Origins: How did Earth get its water?

Scientists are trying to figure out what makes something funny. We compare notes with comedians ⁠Atsuko Okatsuka⁠, ⁠Josh Johnson⁠, ⁠Dulcé Sloan⁠, and ⁠Chris Fleming⁠ (Originally published in 2023) Guests: ⁠Allie Volpe⁠, Vox correspondent; ⁠Peter McGraw⁠, professor at University o ...  Show more

Socrates, Aristotle, Galileo, and Darwin couldn't figure it out. But one scientist has built a tickle robot (named Hektor) to try and settle the mystery of ticklishness once and for all. Guest: Konstantina Kilteni, principal investigator of the Touch & Tickle Lab at the Donders I ...  Show more

The water cycle brings Earth's water from the clouds to the ground and back again -- but how did it get here in the first place? Learn about the leading theories in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/geophys ...

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

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When you envision what Earth was like 4.5 billion years ago, shortly after its creation, images of dust-filled air and raging volcanoes tend to come to mind. However, amidst all that chaos, hidden within the rocks and atmosphere, what if water was also present? Traveling back ...