"they" being intellignt sentient beings.\nthere are (estmated) 50 billion galaxies visible with the hubble telescope.
218498
maybe god is expressed in different ways in other planets.  like other countries in the world express god in different ways.  so is jesus present in other planets or not?
606607
They will never stop. The galaxy is expanding outward and always will be because the universe is infinite.
538431
yeah. we are the perfect proof.\nand, the universe is sooo BIG for us to be the only planet with living organisms.
357099
I would have to say yes. As an avid amateur astronomer the search for knowledge is always a good thing. After all, the Hubble still has a few good years left in it, but they won't upgrade it (I think it's a mirror, that was made specifically for it, and it's still sitting on earth because NASA wants to scrap the Hubble). Mind you, I could be wrong about NASA's decision, since I heard it was going to change and they would be upgrading after all. As for us willing to spend the money, sure. After all, our tax dollars are being wasted elsewhere. I honestly believe the individual should decide where the majority of their own tax dollars are spent.
85486
Now, in your main question, you use the generic term "ones," but in the details you use "human beings."  It is possible we are the only human beings, since that refers to a specific pattern of physical and mental processes.  But the only Ones, as in living, conscious, self-aware beings?  That would be statistically amazing, given how many stars there are, and how many planets revolve around our star.  Science fiction has long estimated the number of habitable planets, the number which are in fact inhabited, etc.  I can't say how many, but I'd be truly amazed if we are the only ones.
213457
THERE ARE ALIENS BOTH GOOD AND BAD. I DON'T KNOW ABOUT TRILLIONS OF YEARS AND SPACE OPERA AND ALL THAT STUFF, BUT I HAVE SEEN SEVERAL ALIENS ON EARTH!
445132
Hi!\nI also think that it is impossible for humans to be alone in this vast Universe ....\nIn fact I believe there are some primitive civilizations here in our galaxy at approximately 31000 light years away, some antique civilizations at 3,1 millions light years away, an evolved civilization at approximately 100 million light years and that in the Universe could exist some 3000 "super - societies" and at least 300000 similar to ours in terms of technical evolution. Still there is that old problem: if they exist, why we didn't manage to "get in touch? After all, this "is" the main objective of S.E.T.I and so far ...nothing.\nThere are some explanations for all this - great distances which actually limits the possibilities of a "radio communication",  the great consumption of energy in order for such a long travel to became possible even in an unconventional way (such us      teleportation) and the  ultimate barrier - speed of light....\nIs there life out there?..... As the "Drake'" equation shows, the probability is very high (there isn't a connection between the figures I wrote earlier and the Drake equation).In the end we simply can not prove anything related to this issue but I guess that questions like this makes life is so interesting
117186
I do believe it. For one, the universe is absolutely massive and there are billions upon billions of solar systems that we have not discovered. Are we so conceited to believe that WE are the only intelligent species in a universe where there are billions of planets? The probabilities are extremely high that there are a number of other intelligent species. We just haven't found a means to detect them or communicate with them yet.
591053
Those people are like frogs in the pond who have never had occasion to see rivers and oceans. They should at times come out and see how big and huge the universe is as compared to their Church.
13064
Yeah I think you babble...\n\nThere is no proof that we have been visited, but there are people like Eric Von Daniken who offer proof.\n\nThe most compelling theory is Drake's equation, which shows that given the number of star systems, it is almost beyond comprehension that there isn't intelligent life out there.
153856
At the present time, we just don't know.  If you saw pictures of aliens, what you saw were fake.  Nobody on earth has yet to produce a verifiable image, photographic, electronic or hand-drawn, of a living creature that originated elsewhere in the universe than from our home planet.  Nobody.\n\nAlso, at the present time, we suspect that there is no other planet in any nearby solar system that's host to a sentient race of beings like us.  That does not mean that some form of what we call "life" is impossible, but just think: out of the billions of living critters that now inhabit, or did in the past, our home planet, only one of those life forms evolved to the point where it (us) can even begin to think about such questions.  That by itself will tell ya we're sorta unique! ;-)\n\nIt sure would be interesting, wouldn't it?  But imagine if you will what it might be like if those alien creatures we fantasize about were an advanced race of carnivores that look upon us as another breed of cattle, fit only for eating!  Yow!  Or, how about if they were friendly, warm and fuzzy folks who just love to make nice with us - but they carry an infectious disease that there's no cure for.  Oh boy.  Or maybe, like Darth Vader, they just consider us a nusiance worthy of one blast from a super-mega cannon that blows Earth into dust?  Whoa!  Hey dude: you SURE you wanna meet aliens?  \n\nAll this is just idle speculation.  The hard fact is, even if there were creatures just like us somewhere in the universe, we are not gonna know about it, because the distances between them and us are just too great to permit interstellar travel, the hazards of such a trip are insurmountable, and no means of communication can travel fast enough for us to hear from them and be able to answer back.  Kind of a bummer, isn't it?
618971
You've awakened the starry-eyed dreamer in me at this late hour!  I should be sleeping, but can't resist your question.\n\nHow many other planets, do I think?  Actually my number is a lot higher than millions!  In fact, on this subject you get into numbers so large that most of us humans cannot relate them to anything in our experience.  So, sadly, I doubt we can appreciate the grandeur of the universe.  But let me try...\n\nOne fairly recent estimate says there are 70 sextillion *visible stars* in range of modern telescopes (70,000 million million million).\n\nTo help put that in perspective, I'll use a rather old but useful analogy.  Imagine scooping up a big handful of sand at the beach. Try counting the grains of sand.  You'll give up, most likely, in seconds, assuming you even bother to try.  Now look all around you on the beach, and think about *that* number.  Now think about all the grains of sand on *all the world's* beaches... and deserts.  Now multiply that total number by ten, and you get approximately the number above -- of stars in the *known* universe.  The stars not visible to us by even our most powerful telescopes may equal the visible figure -- or be multiples of it.  Mind-boggling, no?\n\nSo to your planet question:  One next has to wonder how many of those stars are actually a sun to one or more planets (hey, I just noticed that was your wording, too; I like it).  Does every star have at least one planet revolving about it?  \n\nWell let's just be very conservative and say that there are only 70 sextillion stars in the *entire* (not just known) universe.  Let's further say that only one tenth of those stars (7 sextillion) have a planet orbiting them.  If we assume merely one planet per sun, then there must be at least 7 sextillion planets in the universe.  Using our sand analogy, that's a planet per grain of sand on all the world's beaches and deserts!\n\nAnyone who believes that is a reasonable number must surely wonder, "How could there NOT be living beings somewhere other than the earth?"  \n\nOf course not all planets will have life on them.  Earth may be the only body in our solar system, for example, which does harbor life, though at least one of Jupiter's moons is also a tantalizing possibility.\n\nIf only one out of a *thousand* of those planets are earth-like -- in the sense that they are rocky, not gaseous, and contain liquid water -- there may be 7 quintillion earth-like planets in the universe.  That's 7,000 thousand trillion.  I've been very careful, but if my math or estimates are off by even a factor of a *billion* there could be 7,000 million earth-like planets in the universe, a figure I think is extremely low.\n\nThese figures seems to jibe fairly well with an estimate of the number of earth-like planets in our galaxy alone, found at space.com (the bottom link in my sources) -- 30 billion, from a 2002 article.\n\nMy personal belief, based on numbers such as this, and on the likelihood that any planet supporting life may contain (extremely conservatively!) a thousand species...  is that there are *billions* of intelligent species in the universe outside the earth.\n\nSince you were wise to point out that we reside in the Milky Way galaxy, which is only one of perhaps billions of galaxies, you might be fascinated by the Hubble photo in the references, below.  I liked it so much, myself, that I made it my new desktop wallpaper.\n\nFinally, on the specific subject of life, there is a well-known method of estimating the number of intelligent, communicating civilizations, called the Drake Equation.  In my references you can see how it works to condense all the possible stars down by multiple factors, leaving the fraction which we may be able to communicate with, or at least hear from!  \n\nHappy dreaming (for me, too), and I hope you are as inspired by all this as I am.   :-)
655872
i will answer this question for you !\n\nyour question is very metaphysical and the other answers address it pessimistically. \n\nwhether galaxies have intelligence is not known BUT I believe it can be possible.\n\nMetaphysically,  single cell in your body has intelligece in the sense that it performs it function perfectly.  A cell may not be aware of the body it lives in ( which is also intelligent ) but can you blame the cell ?\n\nSimiliarly, the galaxy we live may be intelligent but we dont have the awareness ( until now ! ) to realize that.  After all, we were created in our galaxy by some other grander scheme ( i am not implying God in anyway ).\n\nMy idea is far fetched but so was television and human flight.\n\nThe next step in human understanding will be the realization that we are only a small part in a grander cosmic scheme.  Our role in adapting and blending with this scheme will dictate whether we will survive or be another transient flicker of intelligence that pervades every cell and atom of this universe.\n\nIf you are interested, you may read Isaac Asimov's "Foundation Trilogy" which explores your concept.\n\nHindu philosophy also support a optimistic model of your question. \n\nAt the end, it is up to our intelligence to "assign" intelligence labels to things not like ourselves.  I guess it is a matter of faith.
363865
Once a scientist tried to calculate it by math, he said that only in our galaxy there are about 100 million suns, our sun has 9 planets to follow, while other suns could have more or less, so he said that each star could have 5 planets medium, this makes 500 million planets in our galaxy , medium , then he said that 1 of each 100 planet could be warm like ours , this makes 5 million planets , and one of each 100 of those , could have suitable gravity and atmosphere and so a sort of life , this makes 50 thousand planets , and one of each 100 of those has some forms of intelligent life, this makes it 500 planets only in our galaxy.\n\nbut the equation is much easier, our earth is like a grain of sand in its own solar system , why could it be the only form of intelligent life host in the whole universe ?\n\nI believe that some sorts of intelligent life on other planets are asking the same question of yours, and they could never know that we even exist.
388788
There have been a lot of questions about this recently, and as you stated, there are billions of galaxies out there.\nHow many we don't know.  But certainly enough that it isn't out of the question that a lifeform could evolve out there.  Not necessarily humanoid but a lifeform.  They may not look anything like humans or for that matter anything we got on earth.\nThe fact is, everything we know about living things is based on what we have available here on earth.\nThere is the possibility of a lifeform that doesn't require an oxygen based atmosphere.  \nWe are still in the infancy stage of development in space.  If the beings out there are advanced by say 10000 years and have the technology, they could already have been here and are monitoring us as we plod along.  Nobody knows for sure.\nAll we have are guesses and speculation.  No hard facts are available.
89704
They seem to have the disease of mysticism, causing irrational thinking. The so-called leaders are not allowing the world to fully develop to it's potential.\nMost of them here seem to be good, but are following false authorities who are leading them to destruction.
156974
We can only give a rough guess as to how many galaxies there are, and it's billions at least. All but the closest ones visible as galaxies to the naked eye have names. Our local galaxy is the Milky Way, which you can see in a dark place on a clear night as a streak of stars running across the sky. A cluster is a group of galaxies.\n\nSome galaxies we have discovered with Hubble and other new telescopes seem to crashing into each other, and the Milky Way may be on its way to having a galactic interloper in the far future.