Season
Season 1 Episode
- Season 1 How Did The Earth Form?
- Season 1 What Was Earth Like 4 Billion Years Ago?
- Season 1 The Mystery of the Late Heavy Bombardment
- Season 1 Where Did Earth's Water Come From?
- Season 1 How Did Life Begin?
- Season 1 What Was The Last Common Ancestor of all Life on Earth?
- Season 1 Were Volcanoes The Key To Life?
- Season 1 Did Life on Earth Come From Space?
- Season 1 What Would The Earth Have Been Like Without Life?
- Season 1 What is the Oldest Fossil on Earth?
- Season 1 How The Earth Got Its Magnetic Field (And Why It Might Not Protect Us Much Longer)
- Season 1 What Was Earth Like 3 Billion Years Ago?
- Season 1 How Bad Was The Great Oxidation Event?
- Season 1 How Did Life Recover From The First Mass Extinction?
- Season 1 What Would The Earth Be Like Without Photosynthesis?
- Season 1 What Was The First Virus?
- Season 1 What Is The Other 99.99% Of Life?
- Season 1 What Was The Earth Like 2 Billion Years Ago?
- Season 1 A Tour of Earth's Ancient Supercontinents
- Season 1 A Tour of Earth's Ancient Superoceans
- Season 1 What Was The "Boring Billion" Really Like?
- Season 1 What Was The First Complex Life on Earth?
- Season 1 What Was The Earth Like 1 Billion Years Ago?
- Season 1 What Was The First Fungus?
- Season 1 Why Did The Earth Totally Freeze For 100 Million Years?
- Season 1 Were These The First Animals?
- Season 1 How Far Back In Time Could You Have Survived On Earth?
History of the Earth - Season 1 Episode 21 What Was The "Boring Billion" Really Like?
10.00 48 minutes 1.8 to 0.8 Billion Years Ago: Earth's Lost Billion Years
