co - author mrs livia davis , a physicist and astrobiologist from imperial college london , believes their findings suggest that some of the things that stimulated life on soil came from craters bombardments . " we are not saying that only comet contributed to the building blocks of life , " she said , " but it ' s a very great contribution . " other scientists , meanwhile , do not claim that meteoritic chemicals played such a significant role . writes to emeritus prof robert shapiro of new amsterdam university , " they ' re a subunit of a helix of dna . my opinion is that their amounts were absolutely irrelevant and insignificant . " wikinews contacted professor bernard davies , a geologist and astrobiologist presently at arizona wa university , about the recent discovery . while he agree with the theory , he said that he thinks such discoveries are " a pink circle in the evolution of existence plot - a hangover from the miller - urey experiment . science is all about intelligence - its replication and process . "
Shapiro teaches at NY University.