Reality Check
Penultimate Amazing
Hi paladin17 - welcome to the forum.As far as I know, the measured D/H ratio looks pretty much like chondritic meteorites. ....
That may be correct. If so we can expect the E proponents to follow their usual pseudoscience logic and claim it as evidence that comets are chondritic meteorites - forgetting that the D.H ratio has been now measured fro 11 comets and covers a wide range of values. That is evidence against comets being chondritic meteorites - even if we were dumb enough to ignore their measured densities
The scientific argument is that the D/H ratio should vary in the Kuiper belt and Oort cloud and that would be reflected in comet D/H ratios. I can guess why - maybe radiation pressure would push lighter H atoms further away than heavier D atoms.
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