The Origin of Earth’s Helium
[html]Where our supply of helium-3, a rare form of the element, came from is much debated. A new model takes a second look at an older and controversial theory.[/html]
Source: The Origin of Earth’s Helium (http://ht**://www.discovermagazine.c**/the-sciences/the-origin-of-earths-helium)
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