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[Science Daily] The salt of the comet - Science Daily - 2020-01-27
The salt of the comet
Researchers have found an explanation for why very little nitrogen could previously be accounted for in the nebulous covering of comets: the building block for life predominantly occurs in the form of ammonium salts, the occurrence of which could not previously be measured. The salts may be a further indication that comet impacts may have made life on Earth possible in the first place.
https://www.sciencedaily.com/releases/2020/01/200121113001.htm