Around 4.3 billion years ago, a planetary blob of hot molten rock named Earth cooled just enough to start forming a crust. Billions of years later, humans evolved. And now, two of those humans have discovered that a chunk of that original crust is actually still around on the surface today. A duo of geologists led by Jonathan O'Neil at the University of Ottawa have just announced the discovery of an ancient chunk of Earth's original crust. It was found near the eastern shore of the Hudson Bay in Northwestern Quebec, in Canada.
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