All 5 fundamental units of life's genetic code were just discovered in an asteroid sample - Phys.org

All 5 fundamental units of life's genetic code were just discovered in an asteroid sample  Phys.orgA complete set of canonical nucleobases in the carbonaceous asteroid (162173) Ryugu  NatureAll 5 'letters' of DNA found on an asteroid speeding through our solar system. What do they tell us about the origins of life?  Live ScienceWe keep finding the raw material of DNA in asteroids—what’s it telling us?  Ars TechnicaRyugu asteroid sample contains all five key components of DNA, scientists find  Space