Researchers at ETH Zurich have demonstrated in the lab how well a mineral common at the boundary between the Earth’s core and mantle conducts heat. This leads them to suspect that the Earth’s heat may dissipate sooner than previously thought.
Earth’s interior is cooling faster than thought
The evolution of the planet Earth can be described as the history of cooling over the past 4.5 billion years. The surface of the Earth was covered with a deep ocean of magma.