Season 1 (2020)

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How Did The Earth Form?
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May 9, 2020 • 18m

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?
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May 23, 2020 • 22m

Episode 2 of Season 1 premiered on May 23, 2020

The Mystery of the Late Heavy Bombardment
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June 7, 2020 • 20m

Episode 3 of Season 1 premiered on June 7, 2020

Where Did Earth's Water Come From?
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June 14, 2020 • 32m

Episode 4 of Season 1 premiered on June 14, 2020

How Did Life Begin?
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July 4, 2020 • 22m

Episode 5 of Season 1 premiered on July 4, 2020

What Was The Last Common Ancestor of all Life on Earth?
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July 11, 2020 • 24m

Episode 6 of Season 1 premiered on July 11, 2020

Were Volcanoes The Key To Life?
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July 18, 2020 • 21m

Episode 7 of Season 1 premiered on July 18, 2020

Did Life on Earth Come From Space?
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August 8, 2020 • 17m

Episode 8 of Season 1 premiered on August 8, 2020

What Would The Earth Have Been Like Without Life?
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September 2, 2020 • 21m

Episode 9 of Season 1 premiered on September 2, 2020

What is the Oldest Fossil on Earth?
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September 25, 2020 • 31m

Episode 10 of Season 1 premiered on September 25, 2020

How The Earth Got Its Magnetic Field (And Why It Might Not Protect Us Much Longer)
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October 11, 2020 • 23m

Episode 11 of Season 1 premiered on October 11, 2020

What Was Earth Like 3 Billion Years Ago?
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November 22, 2020 • 27m

Episode 12 of Season 1 premiered on November 22, 2020

How Bad Was The Great Oxidation Event?
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December 20, 2020 • 27m

Episode 13 of Season 1 premiered on December 20, 2020

How Did Life Recover From The First Mass Extinction?
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January 6, 2021 • 28m

Episode 14 of Season 1 premiered on January 6, 2021

What Would The Earth Be Like Without Photosynthesis?
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January 31, 2021 • 35m

World Without Photosynthesis

What Was The First Virus?
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February 24, 2021 • 27m

Older Than Life? Evolution of Viruses

What Is The Other 99.99% Of Life?
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April 8, 2021 • 32m

4 Billion Years of Life: Tour of the Biosphere

What Was The Earth Like 2 Billion Years Ago?
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May 16, 2021 • 32m

2 Billion Years Ago: After The Great Flood

A Tour of Earth's Ancient Supercontinents
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June 26, 2021 • 49m

Before Pangaea

A Tour of Earth's Ancient Superoceans
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July 31, 2021 • 43m

Exploring Earth's Prehistoric All Sea

What Was The "Boring Billion" Really Like?
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October 17, 2021 • 36m

1.8 to 0.8 Billion Years Ago: Earth's Lost Billion Years

What Was The First Complex Life on Earth?
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November 30, 2021 • 1h

Earth's Impossible Fossils

What Was The Earth Like 1 Billion Years Ago?
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February 18, 2022 • 43m

One Billion Years Ago: Is This Eden?

What Was The First Fungus?
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May 30, 2022 • 1h 2m

The Key to Life? Evolution of Fungi

Why Did The Earth Totally Freeze For 100 Million Years?
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August 31, 2022 • 49m

Snowball Earth

Were These The First Animals?
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December 14, 2022 • 54m

The Ediacaran: Life's Failed Experiment?

How Far Back In Time Could You Have Survived On Earth?
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June 9, 2023 • 57m

How Far Back In Time Could You Have Survived On Earth?