The search for new forms of second life

Definition of life on other planets, except Earth, is an important task for scientists involved in the emergence and evolution of life. The presence or absence of the planet has a significant influence on its climate and other physical conditions. Research changes in the surface layers of the planets, taking into account the possible outcome of human activity will clarify our understanding of the role of biological processes in the past and present Earth. From this perspective, the results ekzobiologicheskih studies may be useful in addressing contemporary problems in biology. Mole alien forms of life may also lead to the Earth to the most unexpected and difficult to predict consequences. The discovery of life beyond Earth, of course, has great importance for the development of the fundamental problems of origin and essence of life. The immediate objective of the upcoming in the near future ekzobiologicheskih experiments using automatic Biological Laboratories (ABL) is a response to a question about the presence or absence of life (or signs) on the planet. The discovery of extraterrestrial life forms would be greatly exacerbated our understanding of life processes and phenomena of life in general. The absence of life on other planets of the solar system, for example, would also be of great importance, stressing the specific role of terrestrial environment in the process of formation and evolution of life forms. It is unclear to what extent extraterrestrial forms may be similar to our terrestrial organisms by biochemical basis of life processes. In considering the problem of detection of extraterrestrial life need to take into account the different stages of evolution of organic matter and organisms, which in principle can meet on other planets. For example, with respect to Mars may provide various possibilities of detection of complex organic compounds or products abiogennogo synthesis and to the existence of advanced forms of life. Mars has now ceased only chemical evolution that led to abiogennomu education (as was the board being on earth), amino acids, sugars, fatty acids, carbohydrates, possibly proteins, but life itself on the planet seems to be lacking. These substances, in varying degrees different from those of similar compounds found on Earth. It may be that Mars can be detected: the primary protobiologicheskie open systems, membranes separated from the environment (relatively simple primitive life forms, similar to our micro-organisms), more complex forms, such as our simple plants and insects; traces of the former or current, and now lives ; balances vibrant life (civilization) and, finally, it can be a complete absence of life on Mars (in more detail the problem of life on Mars is seen above). This chapter discusses the theoretical background, the criteria for the existence of life, suggested methods for detection of living systems on other planets.