An ancient clash

The collision between Thea and Earth. Illustration: depositphotos.com

Strange lumps in the depths of the Earth's mantle are remnants of the planet from the collision that also created the moon

The new research from Calcutta suggests that remnants of that ancient planet known as Theia are still inside the Earth and explain the origin of the "lumps" near the core-mantle boundary. Other remnants of it coalesced to form the