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Home / Blogs / Is there life on Alpha Centauri?
Is there life on Alpha Centauri?
Blogoleg Danilov08.
02. 2014 at 14:15122
Although science fiction and video game developers have long inhabited the nearest star system to us, we still cannot say with certainty whether Alpha Centauri has planets on which life is possible.
Although the latest research by astronomers at the Universidad Central de Las Villas University of Cuba increases our chances of creating a colony in the distant future 4.3 light years from home.
We have known for quite a long time that Alpha Centauri B has several planets found by the results of a series of measurements of radial velocity fluctuations in 2008-2012.
In total, we know about 11 planets near Alpha Centauri B, and some of them fall into the so called habitable zone of the star, where the temperature fluctuation does not exceed 4-5 degrees Kelvin.
In addition, in this zone, the planets are almost not affected by Alpha Centauri A, which they approach once every 70 years – theoretically, the existence of oceans is even possible there.
A series of new computer simulations and ranking of planets according to the rating of suitability for life based on photosynthesis showed the great potential of some of the planets of this belt.
If we take the index of an absolutely dead celestial body unsuitable for life as 0, and the index of the Earth as 1, then all planets with a rating above 0.8 can theoretically support life.
The ranking takes into account the temperature of the planets, gravity, size, mass, and the presence of carbon monoxide in the atmosphere.
As a result, 5 of the 11 planets of Alpha Centauri B received very high ratings - from 0.86 to 0.93 and can potentially be inhabited and colonized.
For comparison, the rating of Mars on this scale is only 0.6.
Yes, we will not be able to confirm these theoretical studies with practical research for a long time.
But it's still nice to realize that just 4.3 light years from the Solar system, there may be a planet or even planets with highly organized life.
Source: Universe Today
Tags: Space research, Space, Science
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