"We really need to be able to go back in time to understand these different processes." Scientists unlock 1.5 ...

The ocean covers more than 70% of Earth's surface, yet remarkably, we’ve explored only about 5% of it. Despite this mystery, what we do know reveals just how vital — and fascinating — the ...

Like a dragon, Earth is hoarding most of its gold: research suggests more than 99 percent is in its metallic core – enough to cover all of Earth's land in gold 50 centimeters (20 inches) thick.

Researchers have found evidence that Earth's core is leaking gold and other precious metals, according to a new study. The vast majority (99.9%) of Earth's gold and other precious metals are ...

In a discovery that sounds straight out of a sci-fi thriller, scientists from Göttingen University in Germany have found traces of precious metals, including gold, leaking from Earth’s core ...

Although more than 99.95% of Earth's gold is locked in the molten core, tiny amounts may be coming up to the surface in magma, a study found. A lava fountain at Kilauea in Hawaii is seen in early May.

While ¹⁰⁰Ru does exist in Earth’s mantle, it’s slightly more abundant inside of the core —alongside 99.999 percent of the planet’s gold and other precious metals.

Unlike the core, the mantle is mostly solid, and makes up most of the planet (84 percent of the Earth’s volume to be exact). Comparatively, the mantle also has less of a platinum-group-metal ...

Samples from Hawaii seem to contain material that passed across the boundary between the planet’s core and its mantle, nearly 3,000 kilometres below the surface.

Earth’s core formed over 4 billion years ago and contains more than 99.999% of the planet’s gold supply. But as Nature reported, previous studies indicated that some volcanic rocks consisted ...