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A new discovery tells us where life could be in space

by archyw

Despite the apparent calm that emanates from the photographs returned to us by telescopes capable of peering into the depths of the galaxy, the immense space outside the confines of our Earth is far from a “quiet” and suitable place for life. According to the scientists, in fact, a series of aspects, very represented in the sidereal depths, reduce the chances of life on other planets (at least of life as we know it). Specifically, these are collisions between small galaxies, cosmic radiation, supernova explosions. Events of colossal dimensions and unimaginable destructive scope that make the placid stillness of the cosmos something more like hell.

Beyond the premises, however, there is still enough space in the cosmos to hypothesize the existence of some happy oasis in which the vita (as we know it, it is good to repeat it) it could thrive luxuriantly. Researchers led by physicist Duncan Forgan of the University of St. Andrews, in Fife, UK, have therefore developed a simulation to try to understand which areas of the cosmos would present the more chances of host life.

How life would be destroyed in the wrong part of space

First of all, the scientists took care to identify the conditions necessary for life: it would be the presence of water liquid on planets that are neither too close nor too far from the star around which they orbit, in short, planets tempered. I centers of galaxies instead they are studded with explosions, caused by the high density of stars. This would burn the ozone of an Earth-like planet killing any life form with ultraviolet rays.

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So where can life be born?

Scientists have reasoned on the very long term, simulating the evolution of a galaxy on the PC based on the knowledge currently available to us, not only regarding the Milky Way, but also about the galaxies near our “space district”: Andromeda and Triangulum. “We are the first to see how the history of galaxies affects their habitability,” explains Forgan. How does it affect?

Well, it seems that the distribution of gases, stars and planetary systems within the vortices of stars pays off habitable the area peripherals of galaxies, where among other things the Earth is located, located in the inner belt of the outer circle of the Milky Way. The galaxy is immense and the chances of finding living beings are very small, but if we ever start looking, it will be good to start from the edge. In the meantime, however, there are those who hypothesize the existence of fungi on Mars and those who see alien traces on the ocean floor.

Giuseppe Giordano


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