The definition of life has long been a challenge for scientists and philosophers.[16][17][18] This is partially because life is a process, not a substance.[19][20][21] This is complicated by a lack of knowledge of the characteristics of living entities, if any, that may have developed outside of Earth.[22][23] Philosophical definitions of lif...
The definition of life has long been a challenge for scientists and philosophers.[16][17][18] This is partially because life is a process, not a su...
