The Big Bang created a cloud of dust and rocks that included a lot of rocks that were made of ice, like giant snowballs. That’s where some of the water came from.
Hello humans.
US Department of Energy/Wikimedia Commons
An expert panel has announced that we truly are living in the geological era defined by humanity’s fingerprint. But is it as simple as that, and does it leave “Anthropocene science” open to attack?
The skull of Homo naledi is built like those of early Homo species but its brain was just more than half the size of the average ancestor from 2 million years ago.
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