The Exolife： Gas Dust Streams and Seeds  

作　　者：Oleg B. Khavroshkin Vladislav V. Tsyplakov 

机构地区：[1]Institute of Physics of the Earth, Russian Academy of Science, Moscow 12399, Russia

出　　处：《Journal of Earth Science and Engineering》2015年第3期203-214,共12页地球科学与工程（英文版）

摘　　要：The hypothesis that bacteria and protozoa microorganisms are able to travel from one planet to another and become of exolife was not taken seriously by the scientific community for a long time. However at the end of the 20th century the situation changed dramatically. Firstly, in 1990, meteorites consisting of Martian rocks were found. Secondly, it became clear that many microorganisms especially bacteria spores have an uncanny ability to endure the rugged environment of the outer space for a long time and then re-activate in a more favorable environment. If we compare these findings, the idea of interplanetary transmigration of the simplest forms of life on meteoroids ceases to look so illusory. The final dot in this issue was made by the works of academician Rozanov, and later Hoover （Professor Richard B. Hoover） through the discovery of fossilized microbes inside of a meteorite massif, that is to say, seeds of life. However, to tie only the simplest forms of life to meteorites or comets is to introduce strong constraints on the likelihood of delivery of seeds （spores of life） to Earth for many obvious reasons. Besides, exobiology does not negate the problem of origin of life, and transfers it into the era of the young universe. Therefore, it is necessary to consider in detail the essence of seeds of life or cosmic particles of dust and gas-dust streams as their carriers, their penetration path to Earth and forms of their existence.

关 键 词：Gas-dust streams spores of life and space viruses comets and meteoroids biological hazards. 

分 类 号：Q93[生物学—微生物学] V4[航空宇航科学技术]