Is there a possibility that there might be other life forms in space? Could we be alone in this vast universe?
724199
So far we've seen no verifiable evidence of other sentient species. That said, I believe with some certainty that somewhere in our galaxy at some past, present, or future time, a sentient species did/does/will exist.\n\nWhy haven't we heard from them?\n\nPerhaps they are not technologically advanced enough to be heard. They may be mastering stone knives right now, or experiencing their own Rennaisance.\n\nPerhaps they are here right now. Any species sufficiently advanced to travel interstellar distances would be able to hide or masquerade with ease. That Boeing 737 that just flew by may be a surveillance craft.\n\nPerhaps they are so far away they will never notice us and vice versa.\n\nPerhaps they existed a million years ago and died out.\n\nPerhaps they will exist a million years from now.\n\nIt is really impossible to know for sure.\n\nThe Drake Equation suggests that there is sentient life out there. The Fermi Paradox casts doubt. Play around with the calculation form at the second link and see what you think.
22092
How can we be alone?\n6,487,053,332 humans moving on the planet (http://www.census.gov/main/www/popclock.html) and u say we are alone!!!\nJokes apart... there is enough probability for life to exist in the universe.... if we are existing here... then there can be some other organism existing elsewhere...\n\nDefinitely there is life elsewhere... only problem... it'll take time to find them out...
28249
I believe in aliens.  When you think about the infinite size of the universe, how can we be alone, though it's hard to imagine ininite matter should there be planets spanning the infinite realm of the universe, unless only one part of the universe has matter, or maybe it's just a loop.  Anyway, with how many planets and places there are, aliens exsist, however on mars is unlikely
327734
I don't know about experiments and alien visits. But I know that I'd like to think that there is more out there some where. I don't even know if there is a chance that other intelegent life exists for not but I can't help but think that other planets in the universe have to be suitable for some form of life and continue to sustain something. We may never find it or know about it, especailly in this life time but there has to be more than just Earth.
654192
Being an avid science fiction fan and part-time speculative thinker (or something), I would like to believe that there IS life out there.  The universe is so vast, surely the possibility exists.\n\nOnly don't you think we would have had some contact by now? Oh, yeah, maybe we have...nobody really believes that weather balloon story, do they?  Maybe that's the secret...
1005881
There are _trillions_ of stars in the Universe.  Our galaxy, the Milky Way, is composed of 300 - 400 billion stars.  There are _billions_ of galaxies in the Universe, many dwarfing the size of ours.\n\nThe chance of other life _not_ being out there is so close to zero that it can't even be calculated.  There are infinite possibilities in this Universe, and we haven't begun to study more than a tiny bit of them.\n\nTo anybody that has the audacity to say "no" there isn't, then get an ego check.  We aren't the only intelligent life in a Universe of infinite possibilities.
381174
I'm not after the points as much as I'm want to give my views on the matter.\nAliens... I believe there must be life somewhere in the Universe other than Earth, given that it is so big. However I don't believe for a moment we are going to have visitors from other planets. The green men thing is all bullsh*t to me. If there is some other form of life somewhere in the Universe (very far, I expect), I expect it must be microbiotic or something of that sort. And I don't believe the "end of the world" will come from the space either, that's plain stupidity. \nThere you go.\n\nET phone home!
1177396
I think aliens exist, but I don't think they live among us. Think of Earth and all of the cosmic and environmental factors that are required to sustain and promote life.  I think it would be unusual for similar conditions to exist in other galaxies that will produce intelligent beings that look exactly like humans.
993906
I believe that there are some [living] astronauts in the International Space Station as we speak.\nTechnically, this would be considered "living forms in space".\n\nBeyond that, (aliens, etc...),\nwe do not know, but it given the sheer number of stars in the universe, there is certainly a chance.
463075
Aliens as we see in our movies, no.  But I wouldn't presume to think that we are the only living creature in our galaxy.  It's only a question of time and where.  Considering the time and distanc involved, we may never meet.
362430
I think we would be very naive to believe we are the only life form in the universe.As vast and diverse as it is,I believe there has to be a reason for the formation of these planets to sustain life.That said,who knows when the life was present on these planets?And who knows what life forms are out there as we speak?Perhaps Mars and Pluto had life trillions of years ago but there are no remnants now for us to find.It's a fascinating topic.If you think about the possibilities,it's incredible.
248125
I don't believe that there is any tangible proof that there are aliens, but I have always believed that there are. Just considering the amazing size of the universe, it seems unlikely to presume that there isn't other life out there somewhere, perhaps even "intelligent" life.
647533
There are too many other planets in the universe to say that ours is the only one with intelligent life on it! That's human arrogance to say this one planet is the only one with intelligent life. Since we haven't meet any,then their aren't any! Is what most people believe,but I think their is! Everyday we are finding new forms of life right here on our own earth that we didn't now was here,til we found it. Space is so vast, the universe is endless and other species from other worlds probably face the same challenges that we do in space exploration. They haven't discovered how to travel through space and such great distants just as we haven't. Or have they? Remember The Thing! Who knows what could be frozen under the Artic and how long it's been there! Also, I believe that their are species much stronger than us, with the power to inslave us or put us on the food chain. I know this is far out,but think about it...we as humans eat every other animal on the planet cause were the strongest! Now if a stronger species than man took over the earth,who knows man could be on the menu!!!
356008
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?
671308
Of course I think life exists!  Infact, I beleive there is life in the solar system.  How do we know if there isnt life floating in the clouds of a gas giant, or icy crystal like things on pluito?  We havent searched hard enough for these yet!  Duh!\n\nLife outside of the solar system might be a little hard, considering that there are only "hold jupiturs," and "frozen earths."  Both are to hot or cold to support life, and they are massive and have insane gravity.  However certain single celled organisms, say bacteria or such, might reside on the planet.  I always thought that might be.\n\nIn addition, Europa, a moon of Jupitur, has ice flows on it that scientists think liquid water might reside under!  It might be interesting to see what could live there.  From the means of life there, I came up with a skating green creature who could move around on the ice, absorb the moisutre of the water, and undergo photosynthesis to obtain energy.  \n\nEnjoy!\n\nNote: I do beleive in aliens, but dont beleive in UFOs.  Considering how many hot jupiturs there are, I dont think we will even see any life as smart as we were as cavemen until alot later in time...
1127356
greetings....\n\ni actually believe that we are not alone...i have my own encounters... the universe is big....so big we cannot even start to comprehend how big it is... chances are, life could actually be abundant in the universe, but the degree of intelligence could vary widely, maybe life exist only in microbial form, or with intelligence much superior than ours... but for now only earth is known to harbor life... aren't we lucky we are here?
205075
I doubt that there is life there or elsewhere in the universe. Yes there is ice in outer space and probably on portions of planets which means there probably was water out there at one time. However there are too many variables missing for there to be life as we know it. Believing that there are physical life forms other than as we have here on Earth is just speculation. The more space is explored, the more we know that Earth is uniquely made. If you get a chance see the dvd, "The Privileged Planet".