Talk:Volatiles Refinery/@comment-25153693-20140708133430/@comment-25153693-20140708145559

Helium is also a non-renewable resource on Earth - it's mass is so low it can escape the gravity well. All our stockpiles are from oil and gas exploitation and are made from the decay of radioactive elements underground.

A helium atom is simply a retired alpha particle that found itself a couple of electrons and settled down.