The Origin, Extension, and Future of the “NASA Definition” of Life

Keith Cowing
The “NASA definition” enjoys broad popularity among scientists, particularly in the astrobiology community: life is “a self-sustained chemical system capable of Darwinian evolution.” Imprecise and difficult to implement, it nevertheless captures important features of life interesting to researchers and public audiences. A product of the Exobiology Discipline Working Group, it received a four-sentence introduction in […] The post The Origin, Extension, and Future of the “NASA Definition” of Life