We keep finding the raw material of DNA in asteroids—what’s it telling us? Ars TechnicaA complete set of canonical nucleobases in the carbonaceous asteroid (162173) Ryugu NatureRyugu asteroid samples contain all DNA and RNA building blocks, bolstering origin-of-life theories Phys.orgAll 5 ‘letters’ of DNA found on an asteroid speeding through our solar system. What do they tell us about the origins of life? Live ScienceAsteroid Reveals The 5 Key Genetic Ingredients For Life on Earth ScienceAlert