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A timeline of life on Earth: 4 billion years of history
Have you ever wondered how we got here on Earth, and how it all began? From the Archean Eon to the Holocene Epoch, some ...
IFLScience on MSN
The planet’s oldest minerals reveal possible continents before 4 billion years ago
The oldest crystals formed on Earth contain signs that continents existed during the Hadean Eon and were being subducted into the mantle more than 4 billion years ago. If true, this would not only ...
More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...
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