One galaxy may have eaten one of its slightly smaller, more primitive neighbors.
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Today’s video is part of a series on female genius, in proud collaboration with 92Y’s 7 Days of Genius Festival.
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3 min
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Big Think is proud to partner with the 92nd Street Y’s 7 Days of Genius Festival to bring you an in-depth look at the many qualities and characteristics of genius.
Earth may have suffered a violent impact from a “planetary embryo” called Theia 4.5 billion years ago. This impact allowed the moon to form. But new research suggests Theia also became a part of Earth.