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Earth wasn't as riotous and violent right after its birth as we once thought
Right after Earth was born, it is believed to have been a hostile volcanic hellscape filled with magma. The Hadean period, the first phase of our planet's life, started 4.54 billion years ago and ...
PBS8y
Deep Time
The Precambrian encompasses 86 percent of the history of Earth. As its name implies, this includes all of geological time prior to the Cambrian period. Hadean Era (4,550-3,850 mya) The Precambrian ...