Episodes
How Did The Earth Form?
May 9, 2020
An overview of fractionation, Mara's survival, 'Grand Tack' theory, formation of Mercury, solidifying Earth, and theories surrounding Theia.
What Was Earth Like 4 Billion Years Ago?
May 23, 2020
The Mystery of the Late Heavy Bombardment
June 7, 2020
Where Did Earth's Water Come From?
June 14, 2020
How Did Life Begin?
July 4, 2020
What Was The Last Common Ancestor of all Life on Earth?
July 11, 2020
Were Volcanoes The Key To Life?
July 18, 2020
Did Life on Earth Come From Space?
August 8, 2020
What Would The Earth Have Been Like Without Life?
September 2, 2020
What is the Oldest Fossil on Earth?
September 25, 2020
How The Earth Got Its Magnetic Field (And Why It Might Not Protect Us Much Longer)
October 11, 2020
What Was Earth Like 3 Billion Years Ago?
November 22, 2020
How Bad Was The Great Oxidation Event?
December 20, 2020
How Did Life Recover From The First Mass Extinction?
January 6, 2021
What Would The Earth Be Like Without Photosynthesis?
January 31, 2021
World Without Photosynthesis
What Was The First Virus?
February 24, 2021
Older Than Life? Evolution of Viruses
What Is The Other 99.99% Of Life?
April 8, 2021
4 Billion Years of Life: Tour of the Biosphere
What Was The Earth Like 2 Billion Years Ago?
May 16, 2021
2 Billion Years Ago: After The Great Flood
A Tour of Earth's Ancient Supercontinents
June 26, 2021
Before Pangaea
A Tour of Earth's Ancient Superoceans
July 31, 2021
Exploring Earth's Prehistoric All Sea
What Was The "Boring Billion" Really Like?
October 17, 2021
1.8 to 0.8 Billion Years Ago: Earth's Lost Billion Years
What Was The First Complex Life on Earth?
November 30, 2021
Earth's Impossible Fossils
What Was The Earth Like 1 Billion Years Ago?
February 18, 2022
One Billion Years Ago: Is This Eden?
What Was The First Fungus?
May 30, 2022
The Key to Life? Evolution of Fungi
Why Did The Earth Totally Freeze For 100 Million Years?
August 31, 2022
Snowball Earth
Were These The First Animals?
December 14, 2022
The Ediacaran: Life's Failed Experiment?
How Far Back In Time Could You Have Survived On Earth?
June 9, 2023
How Far Back In Time Could You Have Survived On Earth?
