Season 1
Episodes • 2020

1. How Did The Earth Form?
18 minAn overview of fractionation, Mara's survival, 'Grand Tack' theory, formation of Mercury, solidifying Earth, and theories surrounding Theia.
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6. What Was The Last Common Ancestor of all Life on Earth?
24 minNo description available.
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11. How The Earth Got Its Magnetic Field (And Why It Might Not Protect Us Much Longer)
23 minNo description available.
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14. How Did Life Recover From The First Mass Extinction?
28 minNo description available.
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15. What Would The Earth Be Like Without Photosynthesis?
35 minWorld Without Photosynthesis
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17. What Is The Other 99.99% Of Life?
32 min4 Billion Years of Life: Tour of the Biosphere
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18. What Was The Earth Like 2 Billion Years Ago?
32 min2 Billion Years Ago: After The Great Flood
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21. What Was The "Boring Billion" Really Like?
36 min1.8 to 0.8 Billion Years Ago: Earth's Lost Billion Years
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23. What Was The Earth Like 1 Billion Years Ago?
43 minOne Billion Years Ago: Is This Eden?
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27. How Far Back In Time Could You Have Survived On Earth?
57 minHow Far Back In Time Could You Have Survived On Earth?
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