HomeAstronomyRare primordial gas may be leaking out of Earth's core

Rare primordial gas may be leaking out of Earth’s core

An extremely rare type of helium that was created soon after the Big Bang is leaking out of Earth’s metallic core, a new modeling study suggests. 

The vast majority of this gas in the universe, called helium-3, is primordial and was created just after the Big Bang occurred about 13.8 billion years ago. Some of this helium-3 would have joined other gas and dust particles in the solar nebula — the vast, spinning and collapsed cloud that is thought to have led to the creation of the solar system. 

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