Các axit amin được tìm thấy trong thiên thạch đã được phân tích và các dữ liệu so với những phát hiện của Miller. Hầu hết các axit amin Miller đã tìm thấy cũng được tìm thấy trong thiên thạch. Trạng thái của kiến thức khoa học về nguồn gốc của đời sống con người, Miller đã viết trong "Tổng hợp Phòng thí nghiệm đầu tiên hợp chất hữu cơ" | t. ft A A hours fifteen minutes is usually long enough to kill any bacteria . Subsequent tests conclusively identified four spots that had previously puzzled him. Although he correctly identified the a-amino-n-butyric acid what he had thought was aspartic acid commonly found in plants was really iminodiacetic acid. Furthermore the compound he had called A turned out to be sarcosine N-methyl glycine and compound B was N-methyl alanine. Other amino acids were present but not in quantities large enough to be evaluated. Although other scientists repeated Miller s experiment one major question remained was Miller s apparatus a true representation of the primitive atmosphere This question was finally answered by a study conducted on a meteorite that landed in Murchison Australia in September 1969. The amino acids found in the meteorite were analyzed and the data compared to Miller s findings. Most of the amino acids Miller had found were also found in the meteorite. On the state of scientific knowledge about the origins of human life Miller wrote in The First Laboratory Synthesis of Organic Compounds that the synthesis of organic compounds under primitive earth conditions is not of course the synthesis of a living organism. We are just beginning to understand how the simple organic compounds were converted to polymers on the primitive we are confident that the basic process is correct. Miller s later research has continued to build on his famous experiment. He is looking for precursors to ribonucleic acid RNA . It is a problem not much discussed because there is nothing to get your hands on he told Marianne P. Fedunkiw in an interview. He is also examining the natural occurrence of clathrate hydrates compounds of ice and gases that form under high pressures on the earth and other parts of the solar system. Miller has spent most of his career in California. After finishing his doctoral work in Chicago he spent five years in the department of .
