Scientists find all five genetic bases in asteroid Ryugu samples

Scientists have detected all five fundamental nitrogenous bases of DNA and RNA in pristine soil samples from the 4.5 billion year old asteroid Ryugu. Universe Space Tech, ScienceDaily Space & Time, and Science Daily reported that the findings confirm key genetic ingredients existed in space billions of years ago. The research was published in Nature Astronomy, according to Universe Space Tech. [1][2][3]

The identified molecules are adenine, guanine, cytosine, thymine, and uracil. Universe Space Tech reported that these five nitrogenous bases are categorized into two structural groups: purines, which include adenine and guanine, and pyrimidines, which include cytosine, thymine, and uracil. [1]

The discovery suggests that the chemical ingredients necessary for life to emerge were scattered throughout the Solar System early in its history. ScienceDaily Space & Time reported that the presence of these nucleobases in asteroid Ryugu adds to growing evidence from other meteorites and asteroids that organic building blocks were widespread in space. [1][2]