A research team has produced the first direct experimental evidence that Earth’s iron core traps hydrogen inside nanoscale ...

With an estimated 6 sextillion kilograms of the stuff—that’s 21 zeroes—the Earth’s core shows why hydrogen is the most ...

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 experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has ...

Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure ...

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

The volume of the ocean, its average purity, and the chemical makeup of H₂O allow a simple estimate of the amount of hydrogen ...

Scientists suggest that huge reserves of hydrogen inside the Earth may have been key in the formation of water.

The Earth's magnetic field and oxygen evolved together over 540 million years, according to a major NASA study.

Precious metals may be escaping from the planet’s core. This hotly debated subject could help us understand Earth’s evolution and determine whether life exists elsewhere in the Universe ...

Earth cross section showing the classic distinction between crust, mantle and core. But new research shows Earth's structure is far more complicated and may change over time. Analyzing an unusual ...