



An overview of fractionation, Mara's survival, 'Grand Tack' theory, formation of Mercury, solidifying Earth, and theories surrounding Theia.




























World Without Photosynthesis


Older Than Life? Evolution of Viruses


4 Billion Years of Life: Tour of the Biosphere


2 Billion Years Ago: After The Great Flood


Before Pangaea


Exploring Earth's Prehistoric All Sea


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


Earth's Impossible Fossils


One Billion Years Ago: Is This Eden?


The Key to Life? Evolution of Fungi


Snowball Earth


The Ediacaran: Life's Failed Experiment?


How Far Back In Time Could You Have Survived On Earth?
Made with Love By Anonymous
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