New research led by a York University professor sheds light on the earliest days of Earth's formation and potentially calls ...

In the 1990s, seismologists discovered two hot zones within Earth’s mantle: one under most of Africa, Spain, and part of the Atlantic; the other under the Pacific Ocean.

Located roughly 3,000 kilometers down, this zone sits just above the boundary between the planet's molten outer core and its solid mantle ... from Earth's earliest days. Their theory hinges ...