Whether they had clear or pimply skin, all the study participants sported similar abundances of P. acnes living in their pores, but not all of the strains were the same. (sciencemag.org)
The astronomers also compared the relative amounts of Freon - 40 that contain different isotopes of chlorine in the infant star system and the comet — and found similar abundances. (sciencedaily.com)
As deuterium is thought to have been produced in the big bang, it should once have had similar abundances on all the planets in the solar system. (newscientist.com)