Physical basis of space environment and extraterrestrial life

The space physical environment on the surface of solar planets is the result of an interplay between the unidirectional and oscillatory movement of orbital debris, asteroids, comets, Phobos with putative dust tori including space plasma has posed many unpredictable challenges to human health. The space environment is characterized by various radiation such as solar irradiation, galactic cosmic radiation, X-rays, and alpha-beta particles. The environment of space contained a number of inhibitory physical materials, which could eliminate the biogenesis process of life. In addition to the need to clarify the extraterrestrial life, it is necessary to robustly understand the theoretical viewpoint of evidence synthesis. The cause of extraterrestrial life by experiments on analogues with computational studies deserves further consideration. Therefore the study of physical basis of spatial environment is required to find a unified basis for mankind to support long-duration space missions by multidisciplinary cooperation. This chapter reviews Earth, Lunar, Mars, and extraterrestrial life and their significance related to humankind’s development and evolution.