Theia

Mysterious blobs of dense rock could be remnants of the ancient planet Theia, study finds 

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Blobs of rock lurking deep inside the planet could be the last remaining pieces of Theia, an early world that collided with Earth billions of years ago, a new study claims. The moon is thought to have formed from a ‘giant impact’ early in the evolution of the solar system when a Mars-sized planet called Theia collided … Read more

Astronomers find traces of ancient planet Theia in moon rocks proving ‘giant impact’ theory 

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Traces of the ancient Mars-sized wandering planet Theia that nearly destroyed Earth and formed the Moon 4.5 billion years ago is found in lunar rocks. This goes some way to proving a long-held theory that the moon was formed out of material expelled after Theia collided with the Earth billions of years ago. Researchers from … Read more