Scientists have been puzzled if the molecular building blocks of life developed here on the planet or whether space objects, such as meteorites and comets, brought them. A research team conducted a scientific experiment where they found that an artificial comet ice contained ribose and other factors that are necessary to start life on a planetary body. Ribose and some other sugars are known as blocks for RNA and DNA. The experiment has suggested that such structured sugars could be reason behind the formation of the solar system. It was the first time when the compound was detected in comet ice, said researchers from the University of Nice Sophia Antipolis in France. Sugar molecules detected in lab-grown comet are entirely unexpected, announced Cornelia Meinert, an astrochemist and author of a study on the findings. "This is relevant for many theories on the origin of life", she wrote in an email. Earthlings have genetic materials in the form of nucleic acids DNA and RNA. Scientists