Do Aliens Exist, or Are We Alone in the Universe?

Updated on July 24, 2018
JenniferWilber profile image

Jennifer Wilber works as an ESL instructor, substitute teacher, and freelance writer. She holds a B.A. in Creative Writing and English.

Do Aliens Exist, or are We Alone in the Universe?
Do Aliens Exist, or are We Alone in the Universe? | Source

Is There Anyone Else Out There?

Are we alone? Mankind has asked this question since we first looked up into the night sky, gazing out across the endless sea of stars above. We have always wondered if there is anyone else out there, somewhere amongst the billions of stars, or if we are all alone in this vast universe. Some philosophers throughout history believed that Earth in unique, the one special planet at the center of the universe, with human beings the apex of creation. Others, however, realized that there really isn’t anything special about our planet, or our solar system, so similar life likely could have evolved elsewhere in the cosmos.

With all of the billions of galaxies out there in the universe, why would we think that our planet is the only one capable of supporting life?
With all of the billions of galaxies out there in the universe, why would we think that our planet is the only one capable of supporting life? | Source

Extraterrestrial Life is a Mathematical Certainty

Because the universe is so vast, and because there are so many planets out there with similar conditions to Earth, there are almost certainly extraterrestrials out there somewhere. Whether or not any of them have the means to visit Earth, and whether or not we will ever find them during our species’ existence is debatable. The universe is an infinitely immense place. If life could evolve here on Earth, there is no reason to believe that it couldn't also evolve somewhere else in the vastness of the universe.

As vast as the universe is, it is reasonable to assume that at least a few other planets exist with atmospheres and environments similar to our own somewhere in the universe. There is no reason to think that another planet couldn't have formed similarly to our own Earth. Perhaps there is no other planet like it at the present time, but at some point in the universe's history or future, there almost certainly has been or will be another planet very similar to our own that has developed similar conditions for similar lifeforms to occur.

Even if there are no aliens technologically advanced enough to visit Earth, they are most certainly out there, somewhere.
Even if there are no aliens technologically advanced enough to visit Earth, they are most certainly out there, somewhere. | Source

How Technologically Advanced Would Alien Civilizations Be?

If extraterrestrials exist, they may or may not have advanced enough technology to find us and our planet. Some of them are likely very much like ourselves. They too probably look up into the night sky and wonder if they are alone in the universe. Many alien societies are likely less technologically advanced than we are at the current time. Others probably have technology far greater than we can even imagine at this point. There may be yet other alien societies that have already driven themselves to extinction with their technology and over-consumption of their resources, much like we will likely inevitably do at some point in the future. However, there are also likely other alien worlds that have not yet evolved intelligent, sentient beings yet. There may be billions of worlds with the potential to host life in the universe that have not yet even begun the process of forming lifeforms.

What would alien lifeforms look like?
What would alien lifeforms look like? | Source

How Different Would Extraterrestrial Life Be from Life on Earth?

Some scientists claim that Earth is unique, and that it is the only planet that could support life like ours. Perhaps that could be true. However, life would evolve specifically to the conditions present on whatever planet on which it was evolving. The life on another planet likely would not be able to survive on Earth, and vice versa. It would be specialized to its own environment where it evolved. Even our own planet's climate has changed over the course of its history, and life has adapted accordingly to survive and thrive in whatever ecosystem it is presented with. Prehistoric life would not be able to survive in the conditions of present-day Earth.

Would we even recognize alien lifeforms as living beings if we saw them?
Would we even recognize alien lifeforms as living beings if we saw them? | Source

Would We Even Recognize Alien Life if We Found It?

If life exists elsewhere in the universe, it is also likely that we wouldn’t even recognize it if we found it. Perhaps life evolved and adapted in an alien environment so unlike our own that it would be completely unrecognizable as life as we know it. Maybe there are other ways for life to exist that are adapted to environments that we can’t even imagine lifeforms surviving in. Perhaps they would consider our Earth to be completely inhospitable to life.

Science fiction is full of non-carbon-based lifeforms. It’s not uncommon for science fiction writers to speculate about the possibility of silicon-based lifeforms. Could this type of life really exist somewhere in the universe? Perhaps there could be even stranger types of lifeforms out there that we can’t yet even imagine.

Perhaps Earthlings have extraterrestrial origins.
Perhaps Earthlings have extraterrestrial origins. | Source

Could Earthlings Be Alien Lifeforms?

Some theorists believe that amino acids, the building blocks for life as we know it, or even the first single-celled organisms, first arrived on Earth from space via an asteroid. If the theory that life on Earth was seeded from somewhere else in the universe turns out to be true, then there must be life somewhere else in the universe, or at the very least, there must have been life elsewhere at some point in the universe’s history. Perhaps life on Earth is all that remains of a long-forgotten inhabited planet. Perhaps we are only one of many planets now inhabited by the evolutionary products of the same simple life forms. Maybe someday lifeforms that first evolved on Earth will be seeded on other worlds and evolve into new lifeforms elsewhere in the universe.

Earth is just one of billions upon billions of planets in the universe that may be capable of supporting life.
Earth is just one of billions upon billions of planets in the universe that may be capable of supporting life. | Source

Earth: One of Many

The idea that Earth is the only inhabited planet in the universe, and that humans are the only sentient beings to have ever evolved, is extremely arrogant. There is no reason to believe that Earth is the only planet capable of supporting life in the entire universe. We are only one tiny, unremarkable planet revolving around one insignificant star in a vast sea of billions upon billions of stars. How can we possibly believe that we are completely alone in this universe?

© 2018 Jennifer Wilber

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    • Miebakagh57 profile image

      Miebakagh Fiberesima 

      2 weeks ago from Port Harcourt, Rivers State, NIGERIA.

      Hi, reymark, what's not all liveng?

    • profile image

      reymark segura 

      2 weeks ago

      not all liveng

    • JenniferWilber profile imageAUTHOR

      Jennifer Wilber 

      3 weeks ago from Cleveland, Ohio

      I don't know if there are any lifeforms on the other planets in our solar system, but there is likely plenty of life on planets in other solar systems and in other galaxies, though they may be too far away for us to ever contact.

      Some people believe that religious figures, such as angels in Christianity or deities in other religions, might be references to aliens that visited in ancient times, but there is no solid proof that I know of indicating that these stories are actually based on real events.

    • Miebakagh57 profile image

      Miebakagh Fiberesima 

      3 weeks ago from Port Harcourt, Rivers State, NIGERIA.

      Hi Jennifer, I can be agreed with you. Plants are living things without the facility to see and hear. And, they are other microscopes beings like the amoeba which are basically animals but without sight and hearing applications. These can be exempted.

      But we are here focussed on alien beings from other outward planets like Mars. I think you understand. So when such creatures come here on earth, there can find life very strange. Unless these adapted to the conditions on earth, how do their survive here on earth?

      Let me go a little further. Do you know that the outer planets have been habit by some beings like angels? Do to the mass rebellion of Lucifer and his friends, the remaining who refused rebellion were draft back to God in heaven. Had God allow them to remain, they could likely take steps to habit the earth along with human beings. Do a little research on this and you will see the reality. I hope this helps. Thank you for commenting, and have a nice day.

    • JenniferWilber profile imageAUTHOR

      Jennifer Wilber 

      3 weeks ago from Cleveland, Ohio

      Not all living things on Earth breathe, see, hear, and eat, so those traits are not requirements for life.

    • Miebakagh57 profile image

      Miebakagh Fiberesima 

      3 weeks ago from Port Harcourt, Rivers State, NIGERIA.

      Hi, Jennifer, I think the basic characteristics of life like breathing, seeing, hearing, eating can be used to identify such a being. You know that we as a human being here on planet earth find some conditions not very good for us, and through science, we have changed some, right?

    • JenniferWilber profile imageAUTHOR

      Jennifer Wilber 

      3 weeks ago from Cleveland, Ohio

      Yes, it is very possible that life can evolve to be adapted to many different environments. An alien lifeform might consider the conditions on Earth to be uninhabitable. If we discovered life that was extremely different from life on Earth, would we even recognize it as life?

    • Miebakagh57 profile image

      Miebakagh Fiberesima 

      3 weeks ago from Port Harcourt, Rivers State, NIGERIA.

      Hi, Finn, I would wonder about the suggestion of a similar planet with life like the earth. Would the habitats be like humans? This is beyond my imagination. Thank you.

    • wpcooper profile image

      Finn Liam Cooper 

      3 weeks ago from Los Angeles

      Well, very agreeable. How

      ever, I wonder about those who seek life on planets with conditions like earth. If you think about it, down at the bottom of the Mariana Trench, there are numerous life forms under conditions we don't think life could exist at, but it does.

      Why would a planet have to be like ours?

    • Miebakagh57 profile image

      Miebakagh Fiberesima 

      4 weeks ago from Port Harcourt, Rivers State, NIGERIA.

      Hi Gerry, I agreed.

    • Gerry Glenn Jones profile image

      Gerry Glenn Jones 

      4 weeks ago from Somerville, Tennessee

      I certainly believe other planets could have some type of life form, but whether they are like us is certainly debatable. Nowhere, that I know of in the Bible does it say yea or nay, I enjoyed your article very much, Jennifer.

    • Miebakagh57 profile image

      Miebakagh Fiberesima 

      4 weeks ago from Port Harcourt, Rivers State, NIGERIA.

      Hi all, to me the earth is the only planet human life can be contained. But scientist had proof that life can populate in other planets. But we do not know the life. They say, for example, Mas can support life. And I wonder how many human beings have been ferry to Mas?

      But if ever they are alien life in other planets, and no doubt it exists. They are confined to the environment, as we are on earth. And they have they own technology more refinely advanced than ours. Many will be surprised that some of the technology currently here are duplications of aliens. Thank you.

    • The0NatureBoy profile image

      Elijah A Alexander Jr 

      4 weeks ago from Washington DC

      Jennifer, as a philosophy I suggest we compare the "Zeroverse" (complete verse) to our complete individual bodies. But before going into it take the fictional "Phoenix" that burns itself after a given time and, not said in the story is "after the same amount of time," it is born out of its ashes again. It suggests a never ending continuing cycle. That may well represent out bodies, planet, solar system, galaxy all the way to the Zeroverse.

      Because of "the law of Karma" every human is in a timeline (sequence for incarnating) consisting of 10% of earth's maximum population (I estimate 10 billion) and being so each life-force per timeline must incarnate in every body in it to reap what it sowed and was sown on it, thus, the Phoenix's rising out of its ashes and makes our bodies a complete verse with incarnated and discarnated times.

      As for other life living in us, actually every "atom" in us is a life and building block of other forms of life like blood (that goes through the entire body), water likewise, oil likewise, the organs and everything to the hair on our bodies. Our stationary organs' building blocks accept the liquids as messengers bring life sustaining substances but wonders about if there are others like them. Apply that to the Zeroverse and you have your answer.

      Peace.

    • JenniferWilber profile imageAUTHOR

      Jennifer Wilber 

      4 weeks ago from Cleveland, Ohio

      Maybe the closest alien lifeforms to us don't have advanced enough technology to find us. Maybe the closest technologically advanced civilization is too far away for them to contact us easily. The universe is a big place.

    • AshutoshJoshi06 profile image

      Ashutosh Joshi 

      4 weeks ago from New Delhi, India

      Although there isn't enough, rather no conclusive evidence. Still it makes more sense, than believing in some divine authority.

      But the question remains, why no contact yet? Maybe they are just some animal forms confined to their enironment or may be not!

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