01. How Did The Earth Form?
An overview of fractionation, Mara's survival, 'Grand Tack' theory, formation of Mercury, solidifying Earth, and theories surrounding Theia.
18min
May 9, 2020
02. What Was Earth Like 4 Billion Years Ago?
No details
22min
May 23, 2020
03. The Mystery of the Late Heavy Bombardment
No details
20min
June 7, 2020
04. Where Did Earth's Water Come From?
No details
32min
June 14, 2020
05. How Did Life Begin?
No details
22min
July 4, 2020
06. What Was The Last Common Ancestor of all Life on Earth?
No details
24min
July 11, 2020
07. Were Volcanoes The Key To Life?
No details
21min
July 18, 2020
08. Did Life on Earth Come From Space?
No details
17min
August 8, 2020
09. What Would The Earth Have Been Like Without Life?
No details
21min
September 2, 2020
10. What is the Oldest Fossil on Earth?
No details
31min
September 25, 2020
11. How The Earth Got Its Magnetic Field (And Why It Might Not Protect Us Much Longer)
No details
23min
October 11, 2020
12. What Was Earth Like 3 Billion Years Ago?
No details
27min
November 22, 2020
13. How Bad Was The Great Oxidation Event?
No details
27min
December 20, 2020
14. How Did Life Recover From The First Mass Extinction?
No details
28min
January 6, 2021
15. What Would The Earth Be Like Without Photosynthesis?
World Without Photosynthesis
35min
January 31, 2021
16. What Was The First Virus?
Older Than Life? Evolution of Viruses
27min
February 24, 2021
17. What Is The Other 99.99% Of Life?
4 Billion Years of Life: Tour of the Biosphere
32min
April 8, 2021
18. What Was The Earth Like 2 Billion Years Ago?
2 Billion Years Ago: After The Great Flood
32min
May 16, 2021
19. A Tour of Earth's Ancient Supercontinents
Before Pangaea
49min
June 26, 2021
20. A Tour of Earth's Ancient Superoceans
Exploring Earth's Prehistoric All Sea
43min
July 31, 2021
21. What Was The "Boring Billion" Really Like?
1.8 to 0.8 Billion Years Ago: Earth's Lost Billion Years
36min
October 17, 2021
22. What Was The First Complex Life on Earth?
Earth's Impossible Fossils
1h 0min
November 30, 2021
23. What Was The Earth Like 1 Billion Years Ago?
One Billion Years Ago: Is This Eden?
43min
February 18, 2022
24. What Was The First Fungus?
The Key to Life? Evolution of Fungi
1h 2min
May 30, 2022
25. Why Did The Earth Totally Freeze For 100 Million Years?
Snowball Earth
49min
August 31, 2022
26. Were These The First Animals?
The Ediacaran: Life's Failed Experiment?
54min
December 14, 2022
27. How Far Back In Time Could You Have Survived On Earth?
How Far Back In Time Could You Have Survived On Earth?
57min
June 9, 2023