Earth’s core has often been described as just a giant ball of iron and nickel. Now, a new study argues that it is also a ...

An international collaboration including researchers from Lawrence Livermore National Laboratory has discovered that the Earth’s core formed under more oxidizing condition’s than previously proposed.

(CNN) — Picture all of Earth’s oceans, which cover about 70% of the planet and are mostly made of hydrogen. Now multiply that by nine. That may be the amount of hydrogen in Earth’s core, possibly ...

We know more about the surfaces of other planets than we do about what's inside our own. No drill has ever penetrated Earth's crust, which averages 25 miles thick beneath the continents. So, virtually ...