Vast Stores of Helium –Planet Earth’s Big-Bang Legacy


Big Bang


Vast stores of helium from the Big Bang hidden in the Earth’s Core hint that the planet formed inside a solar nebula. A new study reports that helium-3, a rare isotope of helium gas with two protons and only one neutron in its nucleus, is leaking out of Earth’s core. Although normal helium with two protons and two neutrons can be fused within the interiors of stars, almost all helium-3 is from the Big Bang. The gas leak of helium-3 adds evidence that Earth formed inside a dense solar nebula, which has long been debated.