Do you think that intelligent life exists beyond Earth?
914019
Sure it does...It sure isn't found here...
1103424
You assume, incorrectly I believe, that there is intelligent life on earth. . .
9973
I think yes..could be a good answer...If we compare ourselves to..Earth..our solar system..our galaxy..We are very young put next to the planet's age and even more young when compared to the universe..Are we human beings the ONLY intelligence in the universe?..No..we are a primitive species...and there are far greater intelligent beings that do not originate from Earth..We are not alone..
25028
I am almost 100% certain that life DOES exist on other planets, and may be in completely unfathomable ways, that we could not begin tio understand.\n\nIt us very interesting that the prospects of life having once existed on Mars are become more likely, due to the significant discovery that water once was in abundance there.\n\nThe trouble with finding life in other solar systems is that the distances are just too great. Even radio waves take 4 years to reach the nearest star from the Sun, then you need 4 years for the reply. The majority of stars are MILLIONS of light years away. so EVEN if there are a Billion planets with intelligent life there is no way of being in contact.\n\nBUT I do hope I will find out that DEFINITE life has been proved to exist before I die.\n\nI find this a fascinating subject.
171562
Thinking that in an "infinete universe" we are the only planet with life is selfish and stupid...\nImagine: We are in an insignificant planet, at the corner of an small galaxy...\nI think is very probable that exists other intelligent life form out there... \nThe question is: How far away? Can we ever met them? \nI think they are far enough, so we won't have some kind of encounter with them...
839196
It is more likely than not that there are many planets in the universe with life and many of those may have "intelligent" life.\n\nWe have just only obtained the ability to detect planets in other solar systems and we can only detect very large ones. We do not have the ability to detect Earth like planets.\n\nWithin our own solar system, we have yet to find undisputable evidence of life on any of the planets we have activley searched for it. Many scientists are optimistic about finding microbial life forms within our solar system though. There are still pleanty of places on Mars, for example, that we simply haven't looked, and there are many moons in our solar system with the potential for supporting microbial, and even more complex life forms. Jupiter's moon Europa is a good candidate because it is covered by a sheet of ice and thought to have liquid water oceans underneath. Due to Jupiter's gravity constantly tugging on the planet, it is likely geologically active and thermal vents may exist in it's under ice oceans. Here on Earth, underwater thermal vents are teeming with life, even though no sun light reaches them.
168541
The short answer is: \n- - - - - - - - - - - \n\nYes I think it is fairly likely that there is life someplace outside our solar system. I have written a short historical survey, and then summarized some of the reasons behind my answer. They boil down to 2 points:\n\n1. The universe is a big place\n2. Life seems to be pretty common here on earth and start pretty easily. \n\nThe Long answer:\n- - - - - - - - - - - \n\nA. History\n- - - - - - - \n\nThis is a question that people have asked for a long time. The Greek philospher Epicurius (341–270 B.C) speculated that there were an infinite number of other planets like earth, with life on them, in the universe:\n\n“There are infinite worlds both like and unlike this world of ours...We must believe that in all worlds there are living creatures and planets and other things we see in this world.” Epicurius (c. 300 B.C)\n\nThe Dominican Monk and philospher Giodarno Bruno conjected in his 1584 work, "On the Infinite Universe and Worlds", that there were an infinite number of other worlds with intelligent life on them. He refused to recant this and other controversial beliefs, and was burned at the stake during the Inquisition for this. \n\nThe famous physicist Enrico Fermi formulated the Fermi Paradox (sometimes known as the Fermi Principle by skeptics), which states that if advanced intelligent life was widespread in the universe, we would have evidence of it already. Since we do not have good evidence, where are they? \n\nThis was later addressed by Frank Drake with his Drake equation (aka the Sagan equation or the Green Bank equation) for trying to estimate the probability of using coming in contact with an advanced extraterrestrial civilization. \n\nBoth a modification of the Drake Equation and the analyses associated with the Fermi Paradox can be used to try to estimate the likelihood of there being life beyond our solar system (the interested reader is directed to the references). Basically, depending on what is assumed for a number of parameters, it appears either quite likely that there is life outside the solar system, or quite unlikely. However, at least one has a better handle on what the quantitative factors are that go into estimating this probability by this kind of investigation. \n\n\nB. Reasoning Behind my Opinion\n- - - - - - - - - - - - - - - - - - - - -\n\n\nMy own opinion, after having read this material and some of the links contained, is that it is quite possible that life exists beyond our solar system, or even possibly does or has in other places in our solar system than earth. \n\nFirst, consider the very large number of stars even in our own galaxy (200-400 billion) and the large number of visible galaxies. This leads to about 7x10^22 stars in the visible universe (according to  Dr Simon Driver of ANU). This is more than 10 times the number of grains of sand on earth. This is 100 billion times more than the number of letters in the 14 million books in the Library of Congress. If this is coupled with the seeming presence of a large number of exoplanets around these stars (170 found as of the end of 2005, and we have barely started looking), then this translates into a HUGE number of planets. With this extremely large number of potential planets, there are bound to be some like earth. \n\nLife seems to thrive readily, since life started soon after the earth cooled and existing in environments that we can barely imagine, like miles underground, or near deep ocean vents, or under the Antarctic ice. It has been well known for years that there are amino acids, the building blocks of life on meteors in space. Scientists have also created amino acids in environments similar to deep space environments (see reference). The Miller-Urey experiments in the 1950s were also able to readily create amino acids in environments meant to duplicate a primordial earth environment (reference below). \n\nWith the evidence that there are probably many planets with eart
208681
Well, whether we're even considered intelligent or not would depend on who else is out there in the vast cosmos.  Scientists estimate that there are so many stars and so many planets, even if only one in a billion have life, then there are bound to be other planets with life more advanced then we are.  \n\nInterestingly, in the discussion about creation of the universe and the earth found in the biblical book of Genesis, there's not a word about Earth being the only inhabited world that God created.  \n\nSo yes, the possibility exists.
328025
Absolutely! The odds that they exist are overwhelming when you think of how GALAXIES are scattered like specks of dust!\nNow... even though aliens exist, what are the odds that they are on another planet in our galaxy right NOW? Think about it... It took 50 million years for humans to appear on Earth. How long will we be here?... only 50 to 100 thousand years (hopefully)? How many other planets will bring forth intelligent life - not a whole heck of a lot. And of them, when will that life be around? Just a tiny amount of relative time.\n...What I am saying is that EVEN IF other civilizations were, are, or will be... the timeline of the universe is too insanely long for any of us to be co-existing. The reality may very well be that we are currently very alone here in our time and place. I hope this gives you a new, more realistic way of seeing things. Sorry it's such a downer, though!
1062158
People have always wondered\nwhether or not life exists \nelsewhere in our solar system. \nSomewhere besides the Earth. \nWe humans have never accepted the idea that it is only on the Earth that life has occurred. From earliest times when we peopled the heavens with gods, goddesses and supernatural beings, through our space exploration activities of the 20th Century, we are driven to decide the question:\nIs there Life on Other Planets?\nThe question of UFO's and intelligent life on other planets has become very popular. Many fashionable scientists speculate about the possibilities, insisting that we cannot be alone in the universe. Alien life is the subject of hit television shows and movies, and is also a common belief of many New Age religions. Many people have asked what the Bible has to say about this subject.
414226
Yes, there has to be.  The universe is immense with many galaxies, and many suns.  There must be a lot of similar planets out there somewhere, why should there be only Earth with life?  We might never meet any extraterrestrials, probably aren't supposed to, which could explain the vast distances.  Some other beings exist now, or were extinct eons ago, or are yet to be.  I think they are a lot like us, not made of electricity or silicon, or in only two dimensions like some sci fi.
596996
Out of 10,000 Billion Galaxies out there. No Doubt there is something out there.\n\nEarth will contact something...but not in our lifetimes.\nI even believe there is another planet like ours out there somewhere.\n\nWe would be very naive to think we are the only intelligent planet in the entire Universe.
48082
Maybe we should start a little closer to home...if we can conquer the moon...then maybe we can move on to others like mars and yes there is extraterrestrial life..but I have doubts they are there on Mars..We certainly are not the only Intelligence in the universe..but then ...Humans on a daily basis make it very obvious that we are far from intelligent.
593865
I don't think a credible claim for seeing aliens exists.  Plenty of stories - zero real evidence.  \nDo they exist?  Well, I think the answer is probably.  There are so many zillions of planets in the universe, I would bet that there are others with life.  However, unless the time scale on which that life lives in FAR longer than ours, the laws of physics do not allow them to live nearly long enough to visit us.  It would take many millions of years to go out and visit these other planets - improve rocket technology even 1000x and it would still be thousands of years.  \nHowever - the possibility of us picking up some sort of radio signal from an alien world seems to be real.  No real hits yet - but it may happen.  We have conducted transmissions that have been sent to star clusters (containing millions of planets) which, if any have the same level of technology as us, should be able to pick it up.  Who knows.
25974
Certainly, chances of another intelligent species out there are trmendous. Just a matter of time, before they find us, or we find them.
1115834
I think it's very likely there is. Whether it's intellient, primitive or a little of both, I'm not sure. But if they are intelligent and they don't know we're here, they will eventually. We've been sending out radio waves for at least a hundred years and they've been travelling out into space since then. But when you consider the vastness of space they haven't gone very far. So I'd say it would be millions maybe billions before there's any contact because of the great distances and messages at this point can't go any faster than the speed of light. But millions of years from now, assuming humanity makes it that far, we'll be living on another solar system because by that time our sun will have died and we'll need another place to live. Who knows where that'll be and how such a mass transport will be organized. Maybe at that point space travel will be as common as driving to the grocery store. Or maybe it'll be a privilege only enjoyed by the rich. Who knows where we're headed. Anyway, that's what I think.
948247
NO\nimagine, if we went to some other planet and find intelligent life (intelligent as people), what would we do? \nfirst we would destroy them if we can, but if we cant then we would run away. \ndo we tolerate other people? wars and everything? we can't stand each other, we can't stand some other animal, we kill everything. specially if we are smarter. do we ask rats haw they feel, we just kill them because we don't like them and we don't understand them, and we don't want to understand. we don't share with others!\nI believe there is life in space, but I don't believe that they knew about us, or if they do I don't think that they want to live in peace.\nI think that they are exactly like us!\nhey, but that is just me!