The impact of the commit that hit the Earth 4000 million years ago may have had a role in the emergence of the Life on Earth, says a group of Japanese researchers, who tried to reproduce this “formula” in a laboratory.
The scientists, who presented this August 18 the Results of their research in geochemistry Goldschmidt2015 conference in Prague, compiled a list of substances to reproduce the reaction in a laboratory.
In the recipe, the researchers mixed amino acids , ice and silicate substances at temperatures of -196 degrees Celsius, mix present in comets, such as They have noted the latest space missions.
The scientists then added propellant , to simulate the effect of a crash of the comet with Earth, causing some amino acids transformed into peptides short chain complex molecules often considered essential for the development of life.
“Our experience shows that the cool exists in comets played a key impact on this synthesis,” he said in a statement Haruna Sugahara, the Japanese Agency for Science. “The production of short-chain peptide is a key step in the chemical evolution of molecules.
Once the process starts, much less energy is required to form longer chains of peptides on a terrestrial and aquatic environment, “the statement added.
The researcher noted that impacts of comets, which are usually associated with events species mass, probably got a “push” process for the formation of life.
A similar process could also have occurred elsewhere in the cosmos. The results of the research and Koichi Sugahara Haruna Mimura of the Nagoya University have not yet been published, but according to Mark Burchell of the University of Kent, “constitute a significant contribution to the study of the origin of complex molecules in the universe. “
The mission of the European probe Rosetta, who accompanied the comet 67P / Churyumov-Gerasimenko, confirmed that the celestial body was rich in organic matter.
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