The curious minds at What If imagine witnessing how the Earth was formed, exploring molten rocks, collisions, and the birth of continents.

From the summit of Mount Everest to the depths of the Mariana Trench, Earth’s surface reveals dramatic extremes. This video explains the geological forces that shaped these features and shows how ...

I asked my friend Julie Ménard how Earth formed. She’s a planetary scientist at Washington State University. She told me it started with the Big Bang. That was nearly 14 billion years ago. “The Big ...