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

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

Scientists have uncovered surprising evidence that helium, a gas long thought to be chemically inert, may actually bond with ...

The energy is derived from the center of the Earth, but scientists are certain the core is very, very slowly cooling off. Keeping the center of the Earth hot are two sources of “fuel ...

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 ...

Its loss from magma suggests that the planet has a deep reservoir of primordial helium, and the new compounds suggest that Earth’s iron-rich core could hold some of that helium. But the team ...

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

Barnard's Star is a small, dim star, of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

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