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

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