May 9, 2020

Season 1

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