Earth appears to be a chill blue planet, but deep down, it’s really a metalhead. Its outer core is mostly molten iron (and ...

Scientists have uncovered new information about the Earth's core: it may not be completely solid. Instead, its center may be more malleable than expected and has changed shape in recent years.

The discovery that inert helium can form bonds with iron may reshape our understanding of Earth’s history. Researchers from ...

Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core, new research suggests. The findings could have implications for a long-standing debate about how ...

It has support from the Trump administration and has advanced thanks to oil and gas techniques. But it accounts for just 1 ...

These results suggest that similar reactions between helium and iron may have occurred within Earth’s core shortly after its formation, trapping much of the primordial helium-3 in the material that ...

The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.

They used a laser-heated diamond anvil cell to find this, and the discovery suggests there could be huge amounts of helium in the Earth's core. This could challenge long-standing ideas about the ...