宇宙生物学的必要性
The Imperatives of Cosmic Biology
摘要:
有机分子转化为最简单的自我复制生命系统,即微生物,是由宇宙早期发生的独特事件或罕见事件完成的。随后在宇宙尺度上的扩散和生命的进化是有保证的,由充分理解的物理学和生物学过程决定。整个星系和星系团可以被认为是相互连接的生物圈,横向基因转移,如约瑟夫(2000)最初的理论,提供了宇宙尺度上的遗传混合和达尔文进化。由现代流体力学修正的大爆炸宇宙学认为,生命的开始和广泛的星系间扩散发生在等离子体时代结束之后,当时星系团中的原星系气体碎裂成行星团块。恒星是由这样的行星在这样的团块中合并而成的。当恒星吞噬其周围的行星时,它们会爆炸,将只有在恒星中产生的必要的化学物质与只有在邻近的行星、卫星和彗星中产生的泛子模板一起分配,由行星引力收集,并进一步转化为生物体。最近对附近恒星形成区的红外图像表明,像地球这样的行星上有可能形成生命,但不是不可避免的。
英文摘要:
The transformation of organic molecules into the simplest self-replicating living system,a microorganism, is accomplished from a unique event or rare events that occurred early in the Universe. The subsequent dispersal on cosmic scales and evolution of life is guaranteed, being determined by well-understood processes of physics and biology. Entire galaxies and clusters of galaxies can be considered as connected biospheres, with lateral gene transfers, as initially theorized by Joseph (2000), providing for genetic mixing and Darwinian evolution on a cosmic scale. Big bang cosmology modified by modern fluid mechanics suggests the beginning and wide intergalactic dispersal of life occurred immediately after the end of the plasma epoch when the gas of protogalaxies in clusters fragmented into clumps of planets. Stars are born from binary mergers of such planets within such clumps. When stars devour their surrounding planets to excess they explode, distributing necessary fertilizing chemicals created only in stars with panspermial templates created only in adjacent planets, moons and comets, to be gravitationally collected by the planets and further converted to living organisms. Recent infrared images of nearby star forming regions suggest that life formation on planets like Earth is possible, but not inevitable.
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