BeIR/webis-touche2020 huggingface dataset:
Methane signatures found.

Life in other planets is mainly narrowed down to evidence. Evidence we all seek to support our reasons of believing that there is such a plant in our solar system that has ever had some type life in the past. What we seem to surpass is the fact that those scientists are not looking for these so called “aliens”. They are looking to prove if such life existed in Mars or still exists now. Mars is very similar to earth which is why they believe there could be life in or there was life in Mars. Mars has terrain such as earth, unlike Jupiter or Saturn which is gas. It has weather, atmosphere and most importantly cracks and caves were life would and may be able to hide out. The second one is the evidence of water. If there is water there is life. Moreover, the existence of water has been proven by examining a soil sample that the Phoenix Mars Lander took. On January 15, 2009 NASA confirmed that there are pockets in Mars where large quantities of methane are coming out of on a seasonal basis. This is of huge interest to astrobiologists because organisms are what release earth’s methane as they digest nutrients. Whether it is biology or geology that is producing this methane it is being produced somehow. Once it is inserted into the atmosphere the wind will spread it within months or weeks. Two questions arise from these studies, what is creating this methane? And what is destroying it? Written by: listenwell
Scientists have found living organisms in space

Scientists are looking for vegetation or microbes, not the little green men that people are so certain that exist. Another reason scientists are looking for life on other planets is to assess how well our human species can survive in other planetary environments. Earth is the same size while humanity is ever increasing. All the water that ever was, is, and will be is being consumed. Resources are not expanding, but humaniy's consumption is and will continue to do so, and at some point our planet's resources will no longer be able to sustain the future global population. Authored by Spark of God. How can one be certain that life on other planets exist? How can one know what aliens look like or how many types of aliens exist?Many questions to be asked about such a theory and no answers.calculating the probabilities of life on other planets seems unbelieveable. No proof to back the theory and no sign of green men like everyone calls it. what is it? who made up the word alien? were did it originate? who knows no one because it does not exist. -berry
Not enough sources for life to be supported.

The idea that out of the several planets and galaxies that exist, We are the only form of life seems too vague. Were the other planets and galaxies created for decoration? What is the reason for other planets to exist? When you have a planet such as mars, which was found to have oxygen, You might ask why? Why oxygen in another planet? Then the question arises, does life exist elsewhere? It would be difficult not to believe life exists elsewhere when you have several planets in just our solar system, out these planets some include the facts of them containing oxygen and ice which results in water. And wherever you have the combination of oxygen and water you have life. Extremely good point. I wrote another one on the yes side before this one, you might want to take a look at that one. It is called Methane Signatures Found.
The Government has denied their existence

Why would the Government lie to us? If they knew certainly of the existence of life on other planets, surely we would know? The Ministry of Defence said it examined the reports solely to determine whether enemy aircraft had infiltrated British airspace. Once it was determined that no enemy aircraft were in the sky, it did not investigate further. Why do we not believe the Government? And if they were lying, it would not bode well with the rest of the world. The government would lie to us about this to prevent people fretting and worrying
THE MARINER SPACECRAFT

Just because the researchers found water in Mars it dosen't prove that theres life in this planet. Theres not enought evidence that proves such statement. At one point researchers found evidence of water on Venus but to this day scientist or researchers have not found any micro organisms on these planets therefore we can't prove such theory. Environmental factors such as high amount of carbon dioxide such as fluctuations in weather makes it dificult for organisms to exist on this planets. Some of the theorist that researchers had regarding Mars have being false statememts. One example is when the researchers stated that Mars had irrigations canals on it surface however this theory was proven false. These canals were a result of aptical illusions cause by different coloration on Mars's surface. Also satellites have not shown any signs of life. http://wind.cc.whecn.edu/~marquard/astronomy/mars.htm
There are many false alarms

Not only do many of the sightings have scientific explanations, but they also have stupid ones. It cannot be denied that the majority of the sightings of life on other planets are witnessed by fanaticals who sit in their basement with their trusty telescopes, desperate for anything unexplainable. Many of the sightings have been simple light reflections, strangely-shaped clouds and military aircraft. But people are not willing to even consider believing this. In one case, a purported UFO was the planet Venus near the horizon, but the lady who recorded the supposed phenomenon would not hand over the videotape because she was absolutely certain that the UFO investigators were part of a government conspiracy. (1) And there is no denying there are certainly many others like this lady out there, desperate to believe in something that does not exist. (1) http://abcnews.go.com/Technology/story?id=98385&page=1
HOW LONG DOES IT TAKE......

According to NASA they have been observing as well as researching the universe for 60 years, how long does it take to simply poof if there’s life in space? Obviously, in the world we live in we advance rapidly (“so they say”). Technology is way advanced and the government and other people spend so much money researching things but if in fact we were threatened by this so called “aliens” wouldn’t the government and elected officials spend governmental money so that it could be a proven fact, they spend it on everything else anyways. As of now there is not enough evidence to say that life exist in another planet. Just because someone sees a bright little light in the sky moving doesn’t mean it’s a “UFO” and if it was who build the UFO’S? Let me guess ALIENS. They must be quite smart to build such a thing, we should have them build cars for us then so we can save gas.lol….I think this alien thing is all a myth people believe a lot of things so the next time you see them tell them to land in LA.
Technology

Although we do not have the advance technolgy yet to explrore further in space to find life,it does not mean that we won't have the technology in the future. We have come along way on inventing new technology like cell phones , the internet and satelites, and it is possible for us to invent something that is going to find life in another planet. It is only a matter of time that we invent something that will travel further and faster into space to explore and find a new planet. There has been many futuristic movies where there is flying cars and other planets that are discover but also the technology in those movies is very advance that it could only be made up. Many of us many of us wonder if we are going to be alive to see another planet and flying cars. Our technology has increased rapidly over the centuries and is still continuing to grow and who knows maybe one day we will find life in another planet and even fly a car. veleze23
Thousands of reports yearly

Thousands of reports of UFO sightings come in yearly, hundreds of thousands over the last twenty years or so (1). Can it really be that none of these are genuine? A quick search online produces thousands of hits: not of only of pictures or videos, but also of detailed accounts that simply cannot be scientifically explained. Sceptics are those who have not had an ‘extra-terrestrial’ experience or are desperate for everything to have a scientific explanation. Of the thousands of reports, surely at least some of them are true. EDIT: One way to strengthen this argument would be to rewrite it as an argument that didn't involve UFO sightings. Yes, there is life on other planets. No, that doesn't mean they would visit us. Sorry, but while science supports life on other worlds, UFO nuts are, well, nuts. Your crazy. I'm sure your mother told you that before you moved out and bought that trailer in crazy-drug-addled-hippy-ville. Using the law of probabilities; it is very probable that there is life out there. We simply cannot be the only ones in the Universe. Think how big the Universe is. It is so vast that we are unable to measure it, and it may be even bigger than our own estimations. Our own Galaxy, the Milky Way has about 200 billion other Suns! Our Solar System is located in one of the Milky Way's outer spiral arms, the Orion Arm, and we are in a lonely part of the Galaxy, known as the Local Bubble. And contrary to what religions may have taught, the Earth is not in the centre of the Universe. And while I'm at it - has anyone seen any estimation of where Heaven may be? Do you get the picture, the vastness out there simply makes it too improbable that a part of our Galaxy, amongst possibly at least another 100, 000 million galaxies in the Universe, has the only planet capapble of harbouring life! Also, just because we can't seem to keep hold of evidence, or governments can't, or are hiding truths, does not mean UFO's and alien have not visited us. It is probable that some may look like us, whilst others may not. It is probable that their technological development may be so far advanced, that it can avoid radar detection, conversely some alien life may not be as developed as ours. Tangible proof does not mean none of the above is untrue. Would the sceptics believe all of this, if say, governments admit to cover-ups, or if a leading Prime Minister or President admits there is life out there and we have proof?
NO,NO SOLID PROOF

Is there life on other planets , no one credible source has provided solid eveidence that life exist outside our planet, therefore life is exclusive to earth. The intelligent life on this planet has provided the means for information to be shared and contested, whether right or wrong, in open forums, free from censorship. None of the so called evidence proving extraterrestrial life exist has been acknowledged as accurate by credible professionals in the field of science. the scientist cannot agree there is no solid proof, scientist base their claims on sound proof and no such evidence proving extraterrestrials life exist. Most of the evidence claiming that aliens exist comes from uncertified, uncredible individuals who are on a wild goose chase. None of the evidence cited in this website is articulated or given any method of conformation but simply mentioned. To believe the individuals who make their claim in the favor of life on other planets would do you just as good to believe a car mechanic claiming he found a cure for cancer. No consistent proof exist, until then humans need to only to worry about the preservation of the only life know on any planet, our own and the sub species which we share the earth with. -Certo
are UFO's videos can't be proofs

Videos depicting UFO's and little green men are not proper ways to prove that there is in fact advanced life in other planets, galaxies, and around the universe. But there is evidence gathered by scientists and researchers obstructing the idea that there is no life out there. Although advanced biological organisms have not been unearthed there are many microbial life forms that has been found. This is the evidence that scientists and researchers are targeting primarily when it comes to finding "alien life" from beyond the big blue planet we humans have named Earth.
Scientists have found living organisms in space

I believe that there is definitely life on other planets.If there is one thing that I and scientists are certain about, is that there is no advanced life like ourselves, that exists off Earth in the Solar System. Whether its as big as extraterestrial life, or as small as bacteria there IS life on other planets because "Off all the places in the Solar System that may support life, Mars and Jupiter's moon Europa may eventually confirm without doubt, that life exists or used to exist elsewhere than planet Earth. While Mars may reveal the expected microbes, Europa holds the exciting possibility that more developed life forms may exist there... " http://www.theguardians.com/Microbiology/gm_mbm71.htm. Authored by mona23 The Word Alien derives from something foreign.. The fact that the Universe is so large we can't even comprehend the distances involved (Its further than we can actually see as the Universe apparently expanded faster than the speed of light) why is it not possible that through random chance one of the billion billion billion billion billion etc planets out there has not somehow randomly chanced on creating a life that is not on earth. We know planets similar to earth are out there so why they couldn't have life seems a bit of a mystery..
Not enough sources for life to be supported.

Life in Mars is simply too vague to be completely narrowed down on why it doesn’t exist to some people. However, the possibilities are endless on how life could possibly never exist in Mars. Although it has the many similar aspects of earth, it is still not quite ready to support life. Over 90% of methane is produced biologically here on earth; it comes from living organisms which are mostly cows. We obviously do not have any proof of living organisms or cows for that matter in Mars. Mars is so small which means less gravity and therefore not much atmosphere. With not much atmosphere and no ozone layer there is no protection from the UV radiation of the sun, and that is extremely harmful to life. There may be possibility that there was life before, but certainly life could not be supported in this time and era. There are only a handful of terrestrial organisms that can uphold harsh climates, but then again…where are those organisms they have been searching for? Written by: listenwell
There are many scientific explanations

Many photos can be explained. However, some cannot. Among the MoD’s records there is at least one case of a genuine UFO(1). This was a matter closed for the MoD and scientists have not picked up the task of identifying the flying object, perhaps because, as scientists they want to have a reason and explanation for everything, and they do not want to be associated with saying that there was a genuine unidentifiable flying object which science can prove or deny. (1) http://edition.cnn.com/2008/WORLD/europe/10/20/britain.ufo.sightings/index.html?iref=mpstoryview
THE MARINER SPACECRAFT

The mariner spacecraft that was launched in Mars in 1960's has shown evidence that life outside the planet earth does exist. The photographs from the Mariner series of spacecraft, Mariner 6, Mariner 7 and Mariner 9 showed evidence that water once flowed in abundance on the Martian surface. Vast river systems, flooded plains and even ocean basins were in evidence. Present theories about life on Mars also suggest that if it exists it will be microbial in nature and most probably nano-bacterial or archaean. There is almost no credence given to any ideas that Martian life will be any more complex than this. Good evidence that perhaps Martian life exists or at least, exited a long time ago has come from analysis of Martian meteorites, as well as the detailed examinations of the planet that have been carried out by the series of spacecraft that have visited.
There are never any clear images

I hope that people would change the image that appears in their head when they think of life in other planets. I strongly believe that there is life in other planets but it does not consist of little green men with big black eyes who are out to dissect humanity. Life regardless of its shape and form is life! Life can develop in many types of environments and scientists are realizing that there are many elements that factor in this equation and that contrary to prior believe, life can evolve where we did not expect. Methane-which on Earth is produced mostly by organisms-has been found in Mars and this suggest that there could be life there. Scientists are debating what the actual source of the methane may be. Sushil Atreya from the University of Michigan remains optimistic and says, "Whatever the source, it indicates the presence of liquid water underground and that there is some type of activity going on, biologic or geologic - and that is exciting." My point being is that it is very unlikely to have an actual photograph of life in outer space because if there is life, than it is bound to be microorganisms that cannot be captured on film or camera by an inhabitant on Earth. http://www.newscientist.com/article/mg20126925.400-methane-pockets-may-narrow-search-for-life-on-mars.html
Is there life on other planets

For many years scientist believed that there's life on Mars. Scientist have been testing their hypothesis by researching and inventing new technology to find an answer of whether there's life on the solar sistem. In 2003, researchers mentioned the amount of ice on Mars during its winter and spring seasons. Furthermore, in that same year researchers monitored the amount of water-ice in Mars, this water-ice was more than 90% in some areas, which lead the researcher to belived that there could be life on Mars. For years we have been exposed to such statements on aliens visiting the earth. By visiting the internet we find images which demostrate unidentified flying objects which leads us to believed that theres life on other planets. I understand that we have airplaines and other air crafts but what about those flying objects that not even scientist can explain? By: 95 http://www.nasa.gov/vision/universe/starsgalaxies/frozenworlds_prt.htm
Our fascination makes us believe...

Scientists have found proof of possible life on other planets. The thing is it is not the green intelligent humenoids we think of. Using the hubble space telescope NASA detected an organic molecule in the atmosphere. What they found was methane which according to NASA can have an effect in creating life, play the role in "chemical reactions considered necessary to form life" (1). So there is in fact life on other planets which is the topic announced here. Life does not necessarily mean a super human but can be anything ranging from vegetation or chemicals. Although NASA did not find life regarding an alien humanoid they did find that a chemical that identifies signs of life on another planet aside from Earth. Authored by Lah_88. (1) http://hubblesite.org/newscenter/archive/releases/2008/11/full/
The MoD attempts to hide the evidence

The MoD has to hide evidence. They exist to defend Britain. The knowledge they have is crucial, and to release all they know into the public domain would render Britain unsafe. The MoD does not keep the files secret because they think it is genuine proof of UFO’s. They keep the files secret as it could be enemy aircraft and it would be dangerous to allow enemies to know what vessels of theirs we are aware of. The best fighting tool in such a situation is knowledge, he who has most knowledge wins.
nothing is accurate...

There have been many stories and reports that have been told and filed, ranging from common folk to government officials, regarding sighting and encounters. Although some stories may sound and seem inaccurate it is very doubtful that all stories are misleading. There have been many reports with detailed evidence and most of them similar that may result in the accuracy of their statements. Answers to questions that may seem ridiculous about alien life may never come into light, but there is definitely some accuracy in most of the reports that have been recorded and no actual accuracy on how the reports have been handled.
are UFO's videos can't be proofs

Of course there must be life in other planets. So far it’s premature to have a solid result of the investigation of this matter due to the fact of exploration in some planets it still impossible. But here in earth we have thousands of videos where they show in UFO’s in different countries. People telling their experiences about what they saw on the sky. I know there are lots of UFO’s bogus videos and people making a few bucks selling their stories but it’s also arbitrary to think that all the videos and peoples experiences are not real. written by martz642
Vast amount of space.

We really do only have a weak idea about the constants in Drake's equation. Eg. the constant for the fraction of planets ecologically able to sustain life that actually evolves life, is at best a wild guess. Being optimistic about it might result in thousands of communicating civilizations in the galaxy, whereas being pessimistic might tell you there is only a single communicating civilizations per million galaxies, and perhaps even only a single one in the entire universe.
There is no life on other planets!

There are billions upon billions of galaxies and we inhabit just one of those billions. I think that there is some way you can live on another planet because us as humans have adapted to live on this planet. If there is life on other planets why can’t they adapt to their planet’s diversity just like humans have on earth. Life elsewhere in the universe is situated too far away for us to even think about meeting at the moment. In time though when we explore space further and advance our technology even more we might find life somewhere else. We know at the moment Mars has ice/water and Europa is thought to also be a prime candidate to have water hidden under its surface. So if we take the fact that water is the key to life, we have two planets at the very least within our solar system that have water. -Me984 Statistically, it is likely that other planets have air.
There are many scientific explanations

Once again, science does provide an answer. And, unfortunately for the alien enthusiasts, it is much more logical, much more believable and many sightings have been proved to be something else. The phenomenon that has been seen is not a UFO, or other life forces. Scientists explain how many sightings are simply clouds; meteors that create spectacular light shows when they burn through the Earth’s atmosphere; ball or bead lightning ( strange forms of lightning that are rarely seen); stars or planets or sundogs – bright spots on the solar halo that appear as balls of light in the sky(1). Sorry for the boring scientific explanations, but the little green men have not landed, nor are they likely too. (1) http://uk.reuters.com/article/UKNews1/idUKL1313185220080513
Yes, because it is more likely.

Because someone wins the lottery does'nt imply that there may be chances, or that maybe if they are lucky there could be life in the other planets. When using a religious stand point make sure you read the bible first. Nowhere, in the GOD's word does it say, God is in another planet. Clearly his word says he is in heaven. God's word is not a lie or is ever wrong. Anyone that is not carnal is spirit, God is not carnal therefore you are not going to find him here or in another planet. But if we are looking for little green man from outer space, so far there is no proof they are anywhere in any planet. Lorym There is nothing to say it is more likely. It is just an idea in people's heads. All people manage to say to promote the notion of other life in space is, "Space is big".