I think that it is possible for life to exist outside of earth, whether in other universes or other dimensions, if only on the basis that there is no way to say for certain that there is not. I think that what we see from our perspective is very limited, and that it is (typically) arrogant to assume that our planet is the only "living" planet. I also question our definition of life -- as everything is composed of the same particles on the atomic level, who is to say that our definition of life is even correct?
Life as we know it survives heavily on water and oxygen, and the search for life outside of earth has primarily been focused on finding these substances. However, our understanding of life is based on one example, earth. Therefore I think that life outside earth may well not need water or oxygen. They may have alternative substance for survival. Given the huge amount of chemicals that may be formed from the elements, it could well be the life outside earth survives on these other chemicals as opposed to the chemicals we see as vital to life, on earth.
Think about it, we are a tiny little pin in this vast enormous universe. It would be almost IMPOSSIBLE for there not to be another planet, or moon, or..... Star?? With life on it, even if it's just ONE celestial body, even if they are just unicellular entities there has to be more of us somewhere. Forget the distance. The universe is 14 billion years old, if we could develop in this time, so could have other things PLUS our solar system is very new. This means that there could be life out there even more developed than us, who knows, maybe tomorrow we will get a knock on earth's door with other beings paying us a visit. Whether it be for good reasons, or for bad reasons. I believe in the time I'm alive, I will see an extraterrestrial entity with my own eyes. Scientists have been getting radio signals too normal for pulsars or any other celestial body we know of, this could be an alien sending us signals.
People have been visiting other places in our solar system for the past 50 years. But, aside from Mars and the moon, we have not ventured far enough out to prove there is life on other planets. It would be ignorant to think we are the only planet, out of the 9 planets, to have life.
We are told that the universe is unending, infinite. It seems egotistical and irrational to imagine that earth is the only place, out of a space that goes on for eternity, where there is life. There has to be life of some kind besides just us earthlings out there. It might be something entirely different than we could ever imagine, but I believe there has to be some type of life form besides us.
If you look at what we are made up of, you'll find that 65-70% of our body is made up of water. Water = Hydrogen and oxygen. Carbon (18%), Hydrogen (10%), Nitrogen (3%), Calcium (1.5%), Phosphorus (1.0%), Potassium (0.35%), Sulfur (0.25%), Sodium (0.15%), Magnesium (0.05%), Copper, Zinc, Selenium, Molybdenum, Fluorine, Chlorine, Iodine, Manganese, Cobalt, Iron (0.70%), Lithium, Strontium, Aluminum, Silicon, Lead, Vanadium, Arsenic, Bromine (trace amounts).
Where did all these come from?????!! They certainly did not just pop up out of nowhere and decided to make life on a lump of rock and metal. These elements were created from the core of stars. Helium and Hydrogen, also forming the heavier elements as it cools down eventually forming everything from oxygen to iron. When these stars "die" or explode, they scatter these elements across the universe, some to form new stars, others to land on a lifeless rock to create what we are today. This is happening all over the universe all the time. We don't find helium in our bodies because we have no use for it, but some where, in the vastness of space, there exists life that might actually have use for helium and not oxygen. There is no doubt that their is life beyond or planet, we just haven't found it yet, humans could only look so far, but one day, if we don't kill ourselves in this crazy world, we will live long enough to find what we are looking for.
"Life doesn't exist anywhere but earth? That's like taking a cup of ocean water and saying there aren't any whales in the ocean." - Neil deGrasse Tyson.
There are two possible standpoints from which one can view the possibility of "other" life in the universe. One is religious and one is scientific--although this oversimplifies this discussion.
What if one believes that God/Goddess/Spirits created this world and everything in it, in keeping with most religious writings. Does that mean that there can not be life anywhere BUT on this particular planet? If it does mean that we are all there is--is that not assuming limitations on God's powers, abilities and imagination? If God did indeed create this world in seven days, that leaves 51 weeks in that one year for Him/Her/It to be out there creating all sorts of other worlds and creatures and environments. Is it possible even, that we were a rough draft, and that God did his best work somewhere in the Andromeda Nebula?
Now for the scientists among you. You might say that the particular convergence of that "primordial soup" from whence we came with the perfect planetary conditions for it to cook to perfection just could not happen again. It was too random. Too haphazard. Nonsense. Just because an event is random does not mean it is unique. There ARE others out there.
Yes, because I think the same processes we see here on earth happen everywhere in the universe. Since we are a part of the universe, I can't think we are an anomaly. I can only conclude we are just a reflection of what we see in the sky at night. We are part of the night sky too. Who knows, someone far away might be checking us out. I'm annoyed when folks try to measure distance using light speed. I lose interest when people talk about UFOs. Einstein, as imperfect as he was, proved with a little help that light bends around large objects in space. This was proved by an experiment decades ago when an eclipse of the sun was measured. The same experiment has been repeated by NASA scientists scores of times with the same results. One would think that people would realize that using light speed to measure travel between celestial objects is out of date. If we are being visited by our cousins I think they probably have some knowledge about how to get from point A to point B without x number or light years as part of their equation. Maybe space bends or can be folded.
I think of all the stars in our observable universe. Already billions in our galaxy. Even with a naked eye can I see more galaxies. Why, among all of these grains of sand, should our Sun and Earth be the only system to harbor life?
Sure, I agree the distribution might be too sparse for us to ever encounter another living world. The lack of technology and limits in communication range might keep ALL of us isolated from each other forever. But I'm here, sitting and wondering, gazing the stars. Considering the Drake equation, quite probably some other being, light-years away from my home, is doing the very same thing.
So next time I sit by the lake and look up into our Universe, I wonder how is it like on the other shore, by another lake in a world far away.
The odds of Earth being the only planet with life in such a large universe is slim, there has to be something else than us. Even if we never contact each other, we can't be alone. And if we are alone, what a depressing and sad realization for us all.
The Bible is the only supporting evidence, in the spiritual sense, of heaven and hell. I do believe this is a physical place, with souls or beings living there. This evidence comes by way of faith through the Bible. There being other beings on planets is also a belief that I have, because the universe is so big. But, this is also a faith-based evidence to me. So, I am sure of heaven and hell, but not totally convinced of beings on other planets. But, it is possible.
As astronomers discover other solar systems in our galaxy, this should help the argument that life can possibly exist elsewhere in the universe. If each galaxy is full of solar systems, then conditions should be right for life on some of these planets. Our galaxy is just one of who knows how many, making for an almost infinite number of possible places where life could occur. It certainly may not be the same as here, but life nonetheless.
In this day we shouldn't stay naive because we're afraid to let go of the Bible. I think we as people, being far more intelligent have realized how very small we are in a very big universe. The bible provides us with nothing other than comfort, it is simply not true.
Newton's law is every action has a reaction. Therefore every action created in our planet has a reaction anywhere in the universe. When there is a creation, a destruction also exists. An opinion is god created man wheras there is a reverse man created god. So this planet will also be destructed as once it created and again & again creation & destruction will come in a cyclic order.
AKSHAY TOKSIYA.
Why did I say that there is a life outside the earth? Outer space is composed of millions of galaxies which contain billions of planets. What if one of them is an earth-like planet? There is no impossibility in outer space, since space is full of mystery. Maybe one of the planets in the solar system is a home for aliens.
It only makes sense that there is some other planet or galaxy that has life on it. I mean, think about it, if earth is the only planet in the whole universe that has life, then most of the universe would practically be dead, not living, inanimate, whatever you might say. God may have created earth, but to keep the universe alive, he must have created other planets and galaxies with life, too.
Collect all the sand in the world and put in one big pile, it would probably reach out into space, then take eyebrow tweezers and carefully take one grain of that sand from those trillions and trillions of tons of sand, then somehow cut that one tiny grain of sand into eight pieces, one of those eight bits would represent the Earth. And you still think there's no life on other planets.....I think not.
Merely we know about this universe...Composition repeats after a certain combinations... May be in different form... However it comes back... Apart from math, god is not such a lame creator... He wont leave us alone... At the highest crisis point we'll see alienzz.. That is all from me or universe is biiiiigggg...
The universe is huge and amazing. I truly believe we are not alone. There must be some possibility that life may exist outside Earth. Even Mars has some proof that life could have existed there. But hey if some people can believe there is a celestial being "God" then why can't life outside of earth exist?
We don't know if earth is, so I think yes. And we have no clue unless you go out of earth and prove it to us. For now, I say yes. But, people say no we have no facts. I hate when people say when they know the Earth but they really don't. If you have proof, show the world!
The size and scale of the universe by itself is enough to predict that we are not alone - that sure would be a gigantic waste of space. The reason we have had no encounters is simply because of this scale - it would take 4 years traveling at the speed of light to reach the next nearest star.
Some bacterias and virus came from space. Like the ebola virus and other viruses. Life doesn't pertain to human-like beings alone. But it also pertains to every other species living outside out planet. I also support that there are extraterrestrials living in other galaxies, perhaps not in our solar system but there's millions of galaxies beside ours. So there's a large possibility of life existing in other planets.
Newton's law is every action has a reaction. Therefore every action created in our planet has a reaction anywhere in the universe. When there is a creation, a destruction also exists. An opinion is god created man wheras there is a reverse man created god. So this planet will also be destructed as once it created and again & again creation & destruction will come in a cyclic order.
AKSHAY TOKSIYA.
The universe is incomprehensible to the human mind. Where we see limits the universe sees infinite potential. We cannot be alone and it would be ignorant to assume so. While we may have not found life yet, we will find life on other planets this century. Life has been able to exist on the most harshest environments on earth, we will see the same across the void of space.
The number of new "planets" being discovered every day means that the chances of the conditions for life being duplicated are very very high.
If there was a planet without life then what was it created for? it's just like us, we were once nothing when Earth first created, We evolve, like dinosaurs and such. Other planets might have different temperature, weather, and different lifeforms, but I think it's the same concept as how we were created through evolution.
Commom sense. I would hate to be so narrow minded as to think that earth is the only planet revolving round a star that could support life. The only account that it doesnt is from a biblical point of view which is just that, a point of view.
While it is possible we could be the only life in all of the universe, I think it is highly improbable. Just look at ALL the life on Earth and then think...This can't be possible only here. When we as humans think of life we think of living breathing creatures but what if the other life was not. What if they were possible in ways never seen?
Yes, I totally agree that the life do exists outside of the earth. The very fact that many developed nations are spending lots of money to find out whether the life exists outside the earth is the evidence of existence of life. Moreover, there were evidence found in the soil of planet Mars which was sustainable for the existence of human being, so I agree there exists a life outside of the earth.
We can't survive under water without supplemental oxygen, but there are creatures that can. So maybe there are creatures out there that can live on nitrogen, or that have the ability to live in high temperatures. Just because we can't doesn't mean something else can't; we don't know everything.
When you dip a glass of water into the shallow area of the ocean do you necessarily have to have fish in it when you take it back out ? No, and if there is no fish in your glass of water is it safe to assume that all of the ocean is empty of lifeforms? No.
Space is similar, scientist have only dipped their toes In the "water" ; there are millions of galaxies; thousands of terrestrial planets and similar solar systems. For those whom are religious, if god created us with love why must we be jelous, god created dogs, cats, lions and all of his creations with the same love he created us with. Let's not be blinded by "jelous god belief" believe me god is the last being you wanna call jelous!
Humans have always considered life to be based around the concept of water and oxygen. It is extremely possible that life can exist without such elements. There are currently bacteria that only need methagen to survive. There are extreme halophiles, and those that thrive in the hottest conditions, called theromophiles. If humans would expand on this concept, then it would be relatively easy to grasp the idea of other living things, outside the realms of earth.
I haven't got a chance to read all the answers above so never mind if my views get similar to those of others.
Galaxies on average contain at least a billion stars. Our sun is just an ordinary medium sized star that has a bunch of planets moving around it. So not hard to imagine that a lot of stars might have their planets moving around them too. Add on that there are countless galaxies out there in the infinitely growing universe. So for anybody who gets the feel of universe's vastness and infinite solar systems, it is just impossible to believe that life doesn't exist anywhere else but only on Earth.
Life might exist at a lot of places, it is just a matter of time before we can finally be able to discover it. Maybe other advanced civilizations have already discovered us and if not, they might be desperate to discover us too.
Foremost, using statistics and probability, you can use infinitesimal odds that life might exist. For example, in the journal of Astrobiology, Professor Andrew Watson gives a 0.01 percent chance that life might emerge over the four billion year history of our universe. Yet, even with those numbers, we have found in the last 20 years that biological life did occur on Mars; a planet within our own solar system. Clearly, that shows us easily life can occur, exist, and thrive on other planets, even under difficult odds.
The universe is vast, with thousands of other galaxies and thousands of other planets. It would be pretty ignorant to think that we are actually alone, that we are the only planet that has life. I mean, there have found fossilized bacteria on Mars, so there is bound to be other planets with life.
The universe is far too vast for there not to be other instances of life, outside of Earth. We may never know, but there are universes upon universes, and we are just a little speck in our universe. There is just no way that we could be the only carbon-based accident in the universe.
Conditions for some kind of life are most likely to exist somewhere in the Universe. We may never meet it or we may never be able to recognize it, but the likelihood of us being the only ones is both arrogant and unscientific.
We see it on Earth that most places on this planet have life, in the deep dark oxygen-deprived ocean trenches to hot acidic springs in the Yellowstone Park to the driest desert. There could be life on Mars that either originated there or here by hitchhiking on space rocks. We might even be Martians ourselves. And Jupiter's moon Europa could have life that originated independently underneath the ice shell where there is strong evidence of a liquid water ocean. And lastly we are beginning to find planets around other stars that have similarities to Earth and they could have oceans atmospheres and probably life.
There has to be life outside Earth. Earth is in The Milky way Galaxy, only one of millions of other galaxies that we know. Image the one's we don't know of yet. There has to be life somewhere else out there if there is life in our little galaxy. It's not even a question to me anymore, it's just a matter of time when we actually see another race of life outside of Earth Image how incredible that would be! It can't even be put into perspective.
The probability that the universe is 50 times greater (larger) than what we currently know is very very likely.. It would seem unlikely that there are no other planets throughout this great universe that is not at least the age of the earth..Furthermore, we can only measure how life may have occurred on earth but we still do not have 100 percent assurance of how it came about on this planet..Also even if it would take a billion years for an intelligent life to come about (and that is solely going off of what WE as human know how life MAY have come about!) The unknown age and complexity of the universe would still be a big factor in determining the existence of complex intelligent life.. The average scientist will clearly tell you that the possibility of life existing on other planets is very small and not likely, and that is because the planetary bodies in our solar system are so far spread apart that is would indeed seem impossible for any such exploration to even closest planet that May Harbor life.. And also the fact that none of the planets that surround us seem have any life, not even basic single cell organisms.. So yes, it would appear that we are alone in the universe..
But what I do know is we as human cannot comprehend many occurrences and phenomenon on our own planet yet alone other planets...
Our galaxy is infinite and to say there is no chance other life resides within is absolutely ridiculous and pretty arrogant. Now, if there is other life out there, they would look like something completely out of reach of our own imaginations. Considering the chances of them having all of the specific conditions on Earth is slim to none. Nonetheless Extraterrestrial life is more than possible, it's almost inevitable.
I believe that life exists outside of Earth. It is ignorant to believe that Earth is the only planet in the universe to have the ability to sustain life. Also, to think that all life must be supported by our own necessities is asinine. The universe is boundless, the possibilities are infinite.
There's water on other planets and also why would there be so many solar systems and galaxies if they were all uninhabited? There's also the black night satellite that is old and artificial, scientists don't know where it came from or when it came into orbit. So that is why I do believe that there are other living organisms out there somewhere, somewhere maybe they've found us and we just need to find them.
newton's law is every action has a reaction. therefore every action created in our planet has a reaction anywhere in the universe. when there is a creation, a destruction also exists. an opinion is god created man wheras there is a reverse man created god. so this planet will also be destructed as once it created and again & again creation & destruction will come in a cyclic order.
The Holy Bible is God breathed and not a personal interpretation of man. Now it doesn't say anything other than earth having the creatures created by God. Also the bible states that he created the Sun and the moon. He didn't say that it was a star. There is a clear distinction of god creating the sun and the passage stating that he created the stars also.
I'll probably get slated, insulted and called an idiot.
The Universe is around 14 billion years old, plenty of time for life to develop and expand, evolve into all sorts of weird and exotic forms, gain intellect and use technology, even without developing faster-than-light travel. There has been plenty of time for us to be visited.
There is no evidence of life outside this beautiful world, not even a microbe.
If there is life out there, where is it? An intelligent race would have visited us by now, or we'd at least know of their existence. Never mind the huge, unimaginable distances. But billions of years is plenty of time... where are they?
Simple, there aren't any. I really feel we are truly alone, as depressing as that sounds.
Watch Melancholia, great depressing movie. I just feel we are alone.
There's no reason for life to evolve. Planets, stars, galaxies are organisms of their own.
God created a perfect planet for us such as: Right size, right distance fron de sun, water, oxygen, etc. If you analyze the Universe you can find out that the Universe helps the Earh to harbor life, that means that God created the Universe for us. No nore life outside Earth. My opinion is that we do not have to spend time and money trying to find life in other planets.
The "evidence" supporting life on other planets is heavily biased. The chances that life on other planets are very slim as the things that have happened on our planet are highly unlikely to have happened and even more unlikely to have happened on a planet that is capable of supporting life.
Since it is all about science, while science means logic and logic comes with at least an evidence, therefore no life exist outside the earth. Do not expect me to believe it just the way it is because science is not a religion, it is not something illogical where you don't even need any proof to believe it. Believing that there is life outside the Earth without any evidence is just the same thing as believing in God which is called hope.
I disagree that life exists outside of earth only because there has not been any encounters. Even though people think that anything can exist, since there has been zero encounters or any evidence, it is difficult to believe that there are life on other planets. However, we might just not have the technology to find out. There have been sightings, but none of them proved anything.
Belief in aliens is akin to stating that mermaids exist. Since man exists on land then man should exist under water? It is more likely that there is a form of existence that we are not aware of that exists on other planets ~ but it is unlikely that it is in the form of "life" that we know it. There were many chance (or by God, if you choose) occurances that led to life on this planet. Could those occur again? Yes - but for a planet to have the elemental makeup necessary for that life to be as we currently understand it is highly unlikely.
The statistical variables involved which account for the life we have on earth, is beyond the available number of planets in the universe that are likely to have similar characteristics as earth's. Furthermore, it is entirely unreasonable to assume that any other molecules, other proteins, can aggregate the kind of information systems that life on earth clearly represents. The bewildering stroke of chance that life here represents cannot have occurred anywhere else, unless what we have is an infinite universe.