Cosmic conditions for life

09-03-2018 dredyouall
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The universe may be full of life ... or maybe not. To bud and flourish it is necessary that the planets and galaxies candidates meet numerous requirements to host it. Considering the billions of galaxies in the universe, each with more than 100,000 million stars, it is difficult to imagine that Earth is the only place that contains living things. However, this reasoning assumes that these can be developed in any star system. You really so? In reality, things are not so simple.

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Even in the Milky Way anywhere it is appropriate for the development and maintenance of life. Thus, it is likely that the regions near the nucleus are not habitable. On the one hand, this is because radiation levels from the black superagujero located in the galactic center and the surrounding regions are so high that prevent complex molecules develop. Moreover, in this area the stellar density is very large, which fosters chance encounters between stars. When this occurs, the orbits of the planets are strongly affected by gravitational pulls, which can cause surface changes and severe weather disturbances that lead to periodic mass extinctions.

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Even if we count with a favorable star system, it is sure to arise life, at least as we know it. In fact, by the time they are found only thirty planets in the so-called habitable zone of their systems, a region located to the right distance from its sun for liquid water and possibly life. The more similar to ours than we have news is Kepler-438b, an object 12% larger than Earth, about 472 light years. This world orbiting a red dwarf, the cooler and less massive than the Sun every 35.2 days. Still, you get 40% more light.

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More information on the subject in the article bio cosmos rules, written by Michelangelo Sabadell. You can read it at number 409 VERY INTERESTING.

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