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Tag: head-on

Moon Born from a Violent Head-On Collision

February 1, 2016

It’s been theorized by a number of scientists that the moon was formed as the result of a collision between an early Earth and a protoplanet known as Theia, named after the mother of the goddess of the moon in Greek mythology, some 4.5 billion years ago (around 100 million years after Earth formed). But scientists seem […]

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