A new analysis of samples collected from asteroid Ryugu has yielded all five canonical nucleobases that make up RNA and DNA. It's not the first time all five have been isolated from asteroid material – asteroid Bennu also made the grade. But that's what makes this new discovery even more exciting: We're now two for two for a full set of nucleobases on carbonaceous asteroids. This discovery suggests that the ingredients for life may not be rare in the Solar System after all. "The detection of

Tag-uri: DNA