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Sitting at the UCSD Moon Rock research press conference table; Albert E.J. Engle (left) UCSD Professor in the Earth Sciences department and Harold Clayton Urey (right) UCSD Chemistry professor and 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; Albert E.J. Engle (left) UCSD Professor in the Earth Scienc...