this post was submitted on 28 Apr 2025
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Kinda, but not really. Deuterium exists naturally in more or less the ratio as it has since the solar system first coalesced.
Also, deuterium is a component of heavy water, but the term "deuterium" actually referred to the specific isotope of hydrogen where the nucleus consists of one proton and one neutron, as opposed to a single proton (which is the more common isotope)