For decades, the Younger Dryas has been one of the most hotly debated mysteries in archaeology and Earth history. Now, a team of 26 scientists has re-examined the evidence buried within the Younger Dryas boundary layer using modern analytical techniques—and their findings may change everything.

From microscopic impact markers and melted materials to clues hidden beneath ancient sediments, this investigation revisits one of the most controversial events in human prehistory. Did a catastrophic cosmic event trigger sudden climate change, widespread extinctions, and the collapse of early civilizations? Or has the evidence been misunderstood all along?

In this video, we break down the latest research, the discoveries found beneath the Younger Dryas layer, and why many researchers believe the debate may finally be reaching a conclusion.