Scientists discover remnants of Theia, the planet that collided with Earth 4.5 billion years ago
Two continent-sized structures deep inside Earth may contain remnants of Theia, the ancient planet thought to have collided…
The Lost Planet That Gave Birth to the Moon May Have Been Earth’s Next-Door Neighbor
Portions of the moon-forming impactor Theia survived throughout Earth’s history in the deep mantle while others went on…