Alien Civilizations Exist In The Universe

Posted: May 2 2016, 5:44am CDT | by , in Latest Science News


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Alien Civilizations Exist in the Universe
University of Rochester
  • Evidence emerges of Ancient Civilizations in the Universe

Evidence seems to have emerged of ancient civilizations in the universe other than those that have been constructed by human beings on earth. Aliens may exist and we may not be alone in the cosmos.

The question has always haunted mankind. Is there alien life in the universe other than our own species? If so, then for how long have alien civilizations existed and will they manage to contact us one fine day in the future?

The answers to such questions lie in the Drake Equation. This was laid on the line by the astronomer Frank Drake in 1961. It essentially lists the various factors necessary for a number of ancient alien civilizations to exist out there. Also their ability to contact us is considered among the variables.

The fact that there are many exoplanets surrounding our own and that the universe is constantly expanding shows that other worlds than our own may exist.

The clues tend towards the belief that ancient alien civilizations may have once populated the universe yet now many of them are extinct. Ours may be the only one left.

Yet such a belief is very self-centered. There is a trio of uncertainties in the Drake Equation. The questions of ancient alien civilizations may be linked with these uncertainties.

There are countless stars and star systems in the universe. Out of these a large number have planets that could harbor life. Other issues that need exploring are whether life may have arisen and evolved on these planets and if so how long it survived before petering out.

Thanks to the Kepler satellite we know that many planets out there are habitable. As for the issue of how long civilizations could survive, a more appropriate response would be: were these ancient alien civilizations as technologically advanced as humans.

Looking at the statistics that emerged from the study, there is very little chance of human beings being alone in the universe. There are probably other life forms in other parts of the cosmos.

Yet the great distances between us and them makes an encounter very unlikely to occur anytime soon. There may have been ancient alien civilizations long before humans appeared on earth.

Unless some of these alien civilizations lasted more than 10,000 years, they are probably extinct by now and so we find ourselves alone.

The paper on this matter was published in the journal Astrobiology.

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<a href="/latest_stories/all/all/20" rel="author">Sumayah Aamir</a>
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