New Discoveries in the Younger Dryas Impact Hypothesis
New research continues to support one of the most controversial theories in Earth history: that a cosmic impact around 12,800 years ago triggered a global catastrophe known as the Younger Dryas event and wiped out an advanced civilization in the process.
2025-07-01 02:00:00 - Graham Hancock
In this episode of Squaring the Circle, Randall Carlson explores the latest discoveries from sediment cores, meltglass, microspherules, platinum anomalies, and black mats all pointing to a massive impact that reshaped our planet, our climate, and possibly our memory of what came before.
This wasn’t just a cold snap, it was a planetary reset.
Topics Include:
– New geologic data from North America, Greenland, and South America
– Black mat layers and elevated impact markers
– Ancient flood myths as historical memory
– Civilizational collapse and the Great Forgetting
– How mainstream science is finally catching up
Was there a lost civilization before the Younger Dryas?
Did humanity restart history from zero?
And could it happen again?
00:00:00 - Catastrophic Upheavals in Earth's History
00:02:04 - The Younger Dryas Boundary and Cosmic Impacts
00:04:03 - The Black Mat and Megafaunal Extinctions
00:05:49 - Impact Proxies and Their Significance
00:10:00 - Iridium and the KT Boundary
00:11:52 - The Discovery of the Yucatan Crater
00:19:47 - Evidence of Tsunamis and Impact Fallout
00:22:54 - Nanodiamonds and the Younger Dryas
00:23:59 - Glacial and Eustatic Changes
00:32:02 - Meltwater Pulses and Climate Change
00:40:08 - The Role of Biomass Burning in Climate Change
00:52:45 - The Younger Dryas: A Global Perspective
01:00:29 - Extraterrestrial Impacts and Megafaunal Extinctions
01:06:20 - Evidence of Catastrophic Climate Change
01:12:05 - The Clovis Culture and Its Disappearance
01:18:43 - The Carolina Bays: Impact or Terrestrial?
01:42:21 - New Evidence of Cosmic Air Bursts
01:47:00 - Exploring Geological Deposits and Air Bursts
01:51:41 - Evidence of Cosmic Events and Their Impact
01:57:08 - Understanding Air Bursts and Their Frequency
02:02:04 - Modeling Air Burst Impacts and Their Effects
02:09:12 - Implications of Air Bursts on Earth's History
02:15:28 - The Future of Cosmic Defense and Resource Management