Since SETI has found no EM transmissions from outer space, could there be Intelligent life out there?
410370
These are good questions, and about the only way to answer them is by example.\n\nImagine you live in Australia and someone in England tosses a bottle with a message into the ocean.  Now -- assume that bottle never gets washed up anywhere or caught in seaweed, but just keeps on floating around and around, what are the chances of you finding that bottle if you go down to the beach and watch for it EVERY DAY.\n\nNow multiply that by a billion and you have a general idea of how big space is and how unlikely we'll detect radio signals from intelligent extraterrestrial life.  But it's worth listening anyway.\n\nAnother assumption that you didn't consider -- Humans have only been using "radio" waves for a little over 100 years.  SETI's assumption is that we're either going to catch an alien civilization at the time when they are using radio to communicate, or that aliens broadcast in radio in a conscious attempt to communicate with other lifeforms.  That's a pretty big "if".
547876
If there is life on other planets (outside of our solar system), the odds of ever finding out that there is life there is infinitely, ridiculously small. The next-closest star to our solar system, Alpha Centauri, is just a shade under 4.3 light years away. Even if someone or something from a planet orbiting Alpha Centauri had the ability to travel the distance between our two solar systems and not die of starvation or, if they were able to achieve near-light speed, keep their molecular structures from becoming severely distorted, they would have to make an amazing pinpoint shot to hit Earth. Even if there is "intelligent" life out there, I think it's impossible for us to ever make any sort of meaningful contact with it. Anyone who has ever shot a rifle knows how just a fraction of a degree can determine a hit or miss on a distant target. The odds are that much more exponentially outlandish if we imagine interstellar travelers getting lucky enough to find our planet and solar system out of all the others out there, no matter how "close" we are.
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.
413808
A simplistic 'yes' or 'no' answer to the question of whether extra-terrestrial life exists is not likely to take us to any meaningful conclusion. Nor does a communal belief in the existence of extra-terrestrials lead us, as a race, anywhere closer to understanding the true nature of the universe and its myriad possibilities vis-a-vis the development of life within it. \n\nIt is also to be noted that believing in ET life is an entirely different thing from being successful in establishing their presence. Probabilistic calculations tell us that we would be fools to think of ourselves as the sole "living" beings in this universe. But, the observable universe, atleast as it is at the present moment and given the way we are looking at it, holds no clue of extraterrestrial life of any kind.\n(There's another but to this)But yes, belief in extraterrestrial life, backed by a mathematical understanding of the possibilities would definitely go towards refining our search methodologies. Thats if we are truly interested, and if there is imminent benefit in holding that interest. These are of course, entirely different topics.
342181
Well the nearest star system is light years away. So if they send one, we won't find out the findings. Besides, how would we send commands and receive them, they would have to travel light years of distance. So I would say no.
419811
I think since the universe is so big and since so much time has passed by, at least somewhere along the way, there was another form of intelligent life out there based on pure probability.  I don't remember the odds.\n\nHowever, I doubt we'll ever make contact with any other intelliegent life forms.  There are tons of theories out there why.  For one, humans have only existed for the briefiest of moments out of the life of the universe so the chance that another life form exists at the same time as us is really small.\n\nAlso, one of us would have to master interstellar travel in order to communicate effectively.  The universe is so big that there's a very low chance for collision.  Finally, our civilization is very weak, so our wimpy radio waves going out are such a small blip that a large civilization wouldn't be able to recognize it from just noise.\n\nThere's plenty of reading on the net about it.
176434
Radio signals are probably the only way and that is a slim hope. Most people can comprehend that there are plenty of opportunities for life to evolve elsewhere in our universe(it may even be quite plentiful). What most people don't grasp is the sheer magnitude of the distances between these other worlds. the next closest star is Sirius and travelling at the speed of light it would take 4.3 years to traverse the distance between here and there! Oyher stars are at MUCH greater distances. So I am afraid that the only contact we will ever have with an extra terrestrial race is by radio waves and even that is unlikely.
482291
Nah, probably not like this. Very probable that there's a planet with intelligent life though.
1165624
Very Fascinating  Query indeed...Even scientists are looking for its answer...Their existence has been detected several times but it has never been confirmed...Even Armstrong saw them on the Moon...A few years back, Mexican Air Force had detected some Unidentified Flying Objects(UFOs) that could only be seen with the help of an Infra Red equipment...but they couldn't exactly explain what the flying objects were...eventually this matter went into cold storage...SETI has been trying to detect Aliens on the darker side of the moon...the side which can't be seen from earth...special and powerful modern equipments are also being utilised for this purpose...Well lets hope that their are Aliens........and they do not hate us..
383399
A recent scientific study estimates that there are AT LEAST 70-sextillion stars in the universe, one of which is of course are own sun. The odds AGAINST none of those other stars having planets occupied by sentient life are astronomical (pun intended). Undoubtedly of all the life forms that exist in the universe some are technologically at the same level as we are, while others are at least several thousand years ahead of us. Still others might be where we were 3-million years ago---just down from the trees. Certainly, any alien life with any intelligence at all must wonder if there are other life forms somewhere other than their own world.
348137
if theres not i would be extreme surprised.  the universe is so huge that it would be ridiculos to assume or think there isnt.  even though we have only explored probably less then 1% of the universe we have still found planets that we think would be able to suport human life (remember not all life would have to be carbon based like us either) so even if there isnt a planet that we could live on some other type of creature might think its paradise.  the answer to your question is yes there is most likely life other then ours out there somewhere. although it would depend on what you mean by "life" if you mean intelligent life i still think yes there probably is although they have found fossils of bacteria on mars so technically that means there was at one point there was life in our solar system other then earth.
1117984
This is a highly debated question.\n\nFrom a religious aspect, many Christians believe human life is unique.  Hindu scriptures tell of many planets with many different life forms.  I am not familiar enough with other scriptures to hazard a guess.\n\nThe only scientific arguments I am aware of follow a probabilistic argument.  Unfortunately these fall into the same two camps.  "If there were life we would know by now."  Or the argument estimating that in a universe of our size, there would probably be x number of earth-like planets, with a certain percent evolving into civilizations capable of interstellar communication, and it is only a matter of time, before we hear from one.  SETI is one project I know of  searching for Extraterrestrial Intelligence.\n\nPersonally, I think that if such life exists, it may be so alien that we would not recognize it as all.  I also hope we get our act together, before we suffer intergalactic embarrassment.  Let's learn to get along with one another first, before embracing our alien brethren.
312310
Is there such a thing as close by planets?\nWith all that we see in the night sky, not just stars but galaxies as well, what are the chances that we are alone in the universe?\nThere has to be intelligent life out there. We are all just too far from reach of each other. And most likely, other intelligence would be like us and send probes. Living beings could not survive the long travel, space probes could.
47051
not in our solar system. \nBut you also have to remember that even if there is life on other planets, we are assuming that they are as advance as we are or more. Could it be that maybe they are in a pre-industrial era and have no means of space exploration?
524735
No.  There are no aliens in Area 51 and the government is not communicating with aliens secretly from anywhere.\n\nThe government is searching for aliens through radio receivers and none have been found yet.\n\nIf anyone in the world claims to be receiving messages from God, and these messages form correct prophecy or new science, then, yes, someone is communicating with an alien, and it is documented.  To my knowledge this situation does not exist, even though millions of people claim to speak to God.
26117
Since there is no planet UMO in our solar system, I assume you are referring to a planet outside of our solar system.  \n\nScientists have discovered extrasolar planets,[1] but all of the planets we discovered are so far away, that even if we had sent a electronic signal to them the day we discovered one, since such signals move at the speed of light, our signal to them would not yet have arrived.[2]  Therefore, regardless of the name of the planets we have discovered, the limits imposed by the finite speed of light preclude the possibility of any ongoing communication with the planets (or more precisely, with any possible intelligent life that might inhabit them).\n\nIn short, no, there isn't.
1088527
Statistically it is very likely there is. There are many many billions of galaxies with billions of planets.\nThere are also some organisms found on meteors, but that’s not sure those came from the outer space.