title: Special issue:  Exobiology.  (A) Planetology and the origins of life.  (B) Life:  origin, evolution and adaptation to extreme environments.
mesh_terms: D000222:Adaptation, Physiological; D005075:Biological Evolution; D002621:Chemistry; D018559:Exobiology; D005844:Geology; D008956:Models, Chemical; D000069497:Origin of Life; D016083:Planets; D013026:Space Flight