Earth's Mantle Holds Clues to Ancient Planetary Collision

Scientists propose that two massive "blobs" deep inside Earth, discovered in the 1980s, are remnants of the planet Theia, which collided with Earth and created the Moon. These blobs, located near Earth's molten core, are hotter and denser than the surrounding rock. The research suggests that Theia's remnants have been hidden inside Earth since the collision, and their presence may have played a role in Earth's evolution and its ability to support life. While the theory is not 100% certain, it provides a credible explanation for the anomalies at the core-mantle boundary.