is there life on other planet?
363993
Almost certainly, but probably not in our solar system.  There are billions of galaxies out there, each containing billions of stars - you work out the odds
1052164
Ask those living in other planets!
18963
This is a little hard to answer.\n\nFirst, we haven't found any.  So there's no positive evidence, so it's hard to be really sure. \n\nBut on the other hand, there are billions and billions of planets like ours, and it would be really weird if ours was the only one to have life on it.\n\nSo most astronomers think there's probably life out there somewhere.  I hope we find it.
1123060
Maybe somewhere, we will probably never know! There is a high chance that in another galaxy though that there is another inhabitable planet similar to earth with life living on it, i cant believe that it has only happened to one planet in one galaxy in all of space! That would just be madness!
217359
Yes, I fully believe there is life on other planets.  What it took to create life on Earth was not favored to happen.  The odds that Earth would hold any life at all are too small to comprehend.  But we do not know how large the universe is.  We do know that there are trillions of planets, trillions of galaxies, trillions of stars.  The odds that there is not a speck of life on any of those planets is also extremely small.\n\nI must admit that I have seen a UFO, which occurred last year.  I was driving my friends home from a party and I happen to look in the sky to see a bright white diamond-shaped object.  There were four individual diamond lights that made up the overall shape.  I was astounded, and I knew it was not anything that the United States had admitted to having.  I could name every military jet, helicopter, blimp, and passanger aircraft that I see, but I could not for the life of me figure out what it was.  I immediately turned around and drove to follow it.  Within five-ten seconds, the craft had flown so fast that the lights had disappeared (I watched it the entire time).  I'm not saying it was extra-terrestrial, but it was a UFO.  I live in Cleveland, by the way.
1126911
I believe there is life other than on Earth. Even if just mathematically!\nAn interesting point though, is that the authorities on this field have concluded that the nearest system that COULD support life is Sirius. That's interesting, because throughout history, the more believable tales of alien contact seem to all point to that star system. The Dogon tribe are a classic example of that. They apparently knew of Sirius A and its two companions(Sirius B and Sirius C) long before any 'civilised' society. Sirius C has yet to be discovered, but could well be there! I quote from Wikipedia: "Apparent orbital irregularities in Sirius B have been observed since 1894, suggesting a third very small companion star, but this has never been definitely confirmed." \n\nAs to us being Parasites on this Living Planet, I couldn't agree more.
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.
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!
243321
In space probably not, on another planet almost certain. Look in the sky at night there is something like 100 billion stars that we know of. If each star has say 5-10 planets orbiting it that means there are about 500 billion to 1 trillion planets out there. How can any logical person believe that were are the only 1 that can and does support life?
1037252
If you are referring to other planets that are habitable, I believe that mathematically there has to be intelligent life in other parts of the universe. Here is why.\n\n1. The Hubble Telescope estimates that there are 125 billion galaxies.\n2. Each galaxy has roughly 100 billon stars.\n3. If even 1% of those have planets and only 1% of those are habitable and only 1% of those have life, the odds are high.\n\nThe odds are extremely favorable for there to be extraterrestrial life. \n\nOne can use Drake's equation to calculate the chance of life in our galaxy. Multiply that result times the number of galaxies. See the second link below.\n\nA totally different question would be whether or not we would actually interact with extraterrestrials...\n\nI will leave that one to another Y! Answers Question
1133073
I don't know about the other 8 planets of our system because no life has been found yet but there are other galaxies and it seems arrogant to believe we are the only ones made with so many possible environments for others.
206523
I'd imagine there is.... the universe is way to big to assume that we are the only planet with 'civilized' life on it.\n\n& really... are we THAT civilized???   :P
234059
Of course there is.  You would have to be crazy to think we're the only ones in the universe and the parallel universes, and so on.  They found rust on Mars, which means there was water - therefore leading to the conclusion of life on Mars.  If there was life on Mars, you better believe there's some kind of lifeform billions and trillions of light years away.  No life was discovered yet because we haven't built rockets that are capable of taking us to the destinations of where we haven't discovered yet.
997050
Sure there are. There are many as-yet undiscovered species within out own world. Remember also, that we are but one of thousands of "species" living on the earth. While not provable at this point, given the vastness of our universe, it is likely that there are other forms of life elsewhere. I'd not imagine "little green men" as much as simple-cellular forms.
364063
Chances are, yes.\n\n90% of all solar systems are not in a circle so they can not support life.  Of the 10% that are left what are the odds that another planet is moving around a sun where it's not to hot or too cold. Even in our own little solar system there is only one.\n\nSo, if there is life elsewhere, we will never meet them.
241844
There are many reasons we want to know about other worlds.  One large reason is the possibility of extraterrestrial life.  Is there life outside of Earth?  Is it intelligent?  What benefits can we derive from contact with alien life forms?  What dangers could it pose to our way of living?  Increasing our knowledge about other worlds is probably the best method currently available for answering these important questions.\n\nFurthermore, there are pragmatic issues at stake.  The Earth cannot sustain life forever.  Eventually, human beings must populate other planets if the species is to survive.  (Examples of possible global cataclysms rendering the Earth unihabitable abound--at least a dozen blockbuster movies in the last decade have been based on some type of apocalyptic circumstance.  And though the premises remain remote, on an infinite timeline all possible events approach certainty, i.e. the habitability of the earth will eventually end).  If we are to survive, we must prepare to inhabit other worlds, and in order to do so we must learn about them.\n\nAside from the survival of humanity, another practical reason for seeking information about other planets exists:  the increasing competition for natural resources.  The nature of the system tends toward a more and more efficient consumption of resources.  Since the quantity of terrestrial resources is finite it stands to reason that very soon we will need to seek external resources to sustain systemic growth.  (This is why one of the major functions of the current probe missions is to determine the chemical composition of extraterrestrial bodies--we're looking for stuff we can use).\n\nIn the end, though, the best answer to this question is probably much more simple:  people are curious.
1011457
Exactly... nobody knows if theres life on other planets and its actually quite ignorant for people to believe that we are so superior that we are the only life on the universe.\n\nLife requires certain things to occur in order if its going to happen.  I can go on about this for hours... first things first... life in its simpliest for are anything that are self replicating.  It requires a perfect solvent for biological reactions.  Water is great since the properties of water surpass all others.  this is why you here NASA is trying to search for traces of water on mars... because with water and the right conditions, anything could happen.\n\nCurrently, theres only a limited number of known planets besides the ones in our solar system...  other planets outside our solar systems are hard to detect since they do not emit light of any source so they can no be seen.  The other planets are discovered by the wobble effects of the stars (look it up).  We do not know how many planets per star nor the types of planets they are (more than likely with this method, they have to be very massive like jupiter).