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Sitting at the UCSD Moon Rock research press conference table from left to right UCSD professors and scientists; James Arnold, Gustaf Arrhenius associated with Scripps Institution of Oceanography as a oceanographer and geochemist, and Harold Clayton Urey who is also a Nobel Prize winner in chemistry (1934) for his "discovery of heavy hydrogen." January 19, 1971.

Sitting at the UCSD Moon Rock research press conference table from left to right UCSD professors and scientists; James Arn...