Could life have evolved in cometary nuclei?
D055580:Astronomical Phenomena; D001256:Astronomy; D001272:Atmosphere; D005075:Biological Evolution; D002244:Carbon; D055598:Chemical Phenomena; D002621:Chemistry; D006859:Hydrogen; D008954:Models, Biological; D009584:Nitrogen; D000069497:Origin of Life; D010100:Oxygen; D011108:Polymers; D012996:Solutions; D014466:Ultraviolet Rays
D011108:Polymers; D012996:Solutions; D002244:Carbon; D006859:Hydrogen; D009584:Nitrogen; D010100:Oxygen