With an estimated 6 sextillion kilograms of the stuff—that’s 21 zeroes by the way—the Earth’s core is another example of why hydrogen is the most abundant element in the universe.

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

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

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 major storage place for hydrogen, possibly equivalent to dozens of oceans’ ...

Scientists have long debated whether most of Earth's vital liquid was delivered via icy comets or was homemade ...

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 ...

The iron-rich core at the center of our planet has been a crucial part of Earth's evolution. The core not only powers the magnetic field which shields our atmosphere and oceans from solar radiation, ...

Hydrogen reserves in Earth’s core large enough to supply at least nine oceans may influence processes on the surface today.