Scientists University of Nice Sophia Antipolis have found that a substance of comets under the action of ultraviolet light can serve as a substrate for the formation of the ribose sugar, which is the main component of the RNA molecule. The study was published this week in the journal Science. The ribose sugar is formed when the ice of comets is under the influence of ultraviolet radiation, explains the research.
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to test whether ultraviolet radiation causes these photochemical reactions, the process has been reproduced in the laboratory at a temperature of about 200 degrees Celsius below zero vacuum. Water, methane and ammonia (the components of the substance of comets) were deposited on the surface supercooled with a ratio of 10: 3.5: 1 and then exposed to ultraviolet light. Scientists then raised the temperature to the ambient level.
As a result of the experiment organic substances such as ribose and arabinose, xylose, lyxose and other complex compounds formed. Therefore, it is possible that human life on Earth may have arisen thanks to comets.
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