Why Can't We See Evidence of Alien Life? 

meanwhile in alien youtubes, "top 10 Moments nearly detected by humans"

“Saying there is no life in the universe because we haven’t found any evidence is like going to the beach and scooping up a glass full of water, and saying ‘there are no whales in this ocean’”-Niel DeGrasse Tyson

Why is the narrator's voice so therapeutic??? I dozed off after 3 minutes and woke up next morning

What if all life is perfectly separated to the point we are never ment to meet

What if we're the one's being watched underneath a microscope but too small to notice?

We can't even get along with our own kind, we don't need to get on the bad sides of extra-terrestrial life too.

In my opinion, there is life out there. And we humans, are also called "Aliens" in their world, wondering the same thing if we also exists.

We're violent, destructive and territorial. I would keep my distance if I were an alien.

Everytime i think about space,i end up having a panic attack.

We still haven't found intelligent life, even here on Earth.

If your watching this 9 years later you are definitely addict to these videos like I am 😂

"Maybe the aliens existed too early or we existed too late that we might be one of the last organisms ceasing to exist." -Han of Renoir

When aliens fly by our planet they roll up their windows and avoid eye contact.

*Long Story Short:* We're Not Advanced Enough.

never had a more perfect combination of an existential crisis and ASMR simultaneously

Humans haven't even been living a million years to even noticed other life forms in the universe.

Maybe they were sending signals but we didn't have the technology so they gave up :/

What if planets are atoms in a bigger human

Can we appreciate the fact that this animation was made 9 freaking years before🙌

TedEd: Why can't we see evidence of alien life? Pentagon started showing weird shape flying objects: *Let me help you with that*

I haven't even found evidence of my love life, let alone alien life.

The question I would like to ask is : Why do humans on earth still make war with eachother instead of investing our time and resources into advancing our technology. Why do the sane and moral people allow the greedy and corrupt to lead? Imagine a world where people wouldn't have to work to stay alive, but rather work to better mankind. A world where our technology has become so advanced that it serves us and we only work on improvement. A world where technology wipes poverty and hunger from the table and unites mankind without destroying our individual and national independence. This can all be achieved regardless of our religious or political differences as long as everyone starts to focus more on peace and advancement instead of just surviving and existing. If you look at what the World has to offer, you will see that in almost every country in the world we have brilliant people with unique ideas that can positively change our world.

The thing is, maybe we (and them) have out-developed technology to a point where it cannot develop much further and this is somewhat the furthest that technology can go. Which means that a cost-benefit analysis would result in a negative by any civilization to send thousands of things into space. Why would they? Especially if they might already understand a lot of the universe and don't feel like they need to explore much more. Having reached the limit of technological development also means might mean that they cannot reach other solar systems (just like us) with spacecraft or it would not be realistic (just like for us with our current technology). This is why we will not see leftovers of such alien materials that quickly and often as you might expect at all. Maybe never. Maybe if one civilization has actually survived millions of years and can travel between star-systems to survive dying home-stars, they can detect us. But again, their cost-benefit analysis would result in the question: Is it worth it to travel passed a thousand or million stars away just to reach a civilization that they don't know whether we are dangerous or not? Or to send signals to us while we might be a dangerous more advanced civilization than them? (how would they know for sure) Even if there is already an entire network of civilizations in some places of the Milky Way galaxy, they might see us as a primitive, basic species that should just be left alone and not bothered. Like how we are slowly getting more respect for nature and we want to leave habitats alone and let animals in the wild just be themselves without disrupting their environment. If they already know about our existence, why would they bother letting us know? In what way would they benefit from letting us know that they know? They don't really care and maybe already know a lot about our milky way, not having much left to discover or explore. And then for the sad theory: We might just be an incredible coincidence. Think about all the random events that were needed for our planet to thrive with life. 1) Our planet being on the exactly right location from our star (the sun). 2) our planet having exactly 1 moon that has a good effect on our climate regulation (ocean tides, shifting winds). 3) Jupiter being on the exactly right location for us to throw many incoming asteroids away from us instead of towards us. 4) Earth having exactly right combinations of materials, subtances and gasses, forming and maintaining an ozon layer that is perfect. 5) Our star (the sun) throwing off less violent flares, having less aggressive activity around it than other stars. And having the exactly right amount of mass and size. 6) Earth having the exactly right size and mass to not create certain problems or risks for supporting life for an abnormal long period of time. 7) Evolution taking place and the coincidence of one-out-of-a-million species and variations of all the animals on earth (->the apes) accidentally evolving into something with larger-brain-capacity and complex brain-acitivity in the skull due to a coincidental biological/genetic effect, becoming something with higher intelligence. Possibly, we were never meant to be this advanced. That could be a diversion, an abnormality between the millions of animals/species on Earth. Or a wonder, a miracle, however you want to see it. So maybe, we were never meant to be. We possibly shouldn't exist and or an error in evolution. Could be but I like to think not. I see the more beautiful side of it. We were meant to be. We have just had a small amount of time to develop on Earth. Some animals here have been here for 10 to 50 times longer than us. Maybe any planet like ours experiences mass-extinction events more often than we have found out by our research. Maybe the next mass-extinction event can happen any time now. A time that gives any civilizations too little time to grow very advanced.

Now if the aliens are like cows, they will not spread out in the galaxy even after a billion years of their spawning.

What if they are less advanced?

One of the biggest reasons, is probably because as we look "back", further into space, we see things as they were not in present time, but sometimes millions of years ago. Perhaps millions of years ago some of these places WERE desolate. But now? If we could see back there now, as it is, or even travel there, it could be overrun with life.

The narrator seemed so happy talking about the universe

If there is no limit of how big , the universe is, then there might be no limit to how small its constituent particles are. i.e. atoms of atoms of atoms and uptill infinity.

Maybe they are really far and are looking through a microscope and see dinosaurs not us..because of how long it takes life to travel

If there are aliens out there and if they are superior intelligent life, then they would know better than to communicate or come to earth.Think about it, you have a superior intelligence than bees, does not mean you would stick your hand in a beehive.

Our description of life is very limited. The only life we examine is here on earth. That limits our perception of life. Maybe it could be formed anywhere. We have seen organisms on earth that can survive in -400°C, and also 800°C. Why can't it happen somewhere else. Why are we only looking for "Earth" like planets for life, knowing life can adapt to anything. Maybe life is out there, but we don't know how it looks, because our perception of life is small

I wish in heaven we can get all the answer and truth in visual that we cant solve in this planet called "EARTH".

This guys voice is the most calming I've ever heard

Wow. This guy's voice. Somehow he sounds like an upper-class Brit from the 1930s.

This made me sleepy. Will now watch this everynight.

You know why this video suddenly got suggested now? >next coming up after corona- alien attack

Maybe they communicate using a different method to radio waves. Maybe they are so different to us we can even register them with our technology.

I think life could also be possible on extemely hot/cold planets, the only thing is, we think life isn't possible on those planets because we can't life there. For example: we can't live beneath the water, but fish can. Maybe there's somekind of life that can survive in extreme conditions that we cant.

This was the best accidental asmr I've ever stumbled on

Aliens: hey look there is a planet with life. Also alien: ow, they have many diseases, never mind...

We haven't found yet because when wee look at the universe we see it as it was million of years ago.

Aliens labeled Earth a very hazardous planet with dangerous life after reading our youtube comments

1:12 now that is sarcasm at it finest.

This video is 8years ago, and still relevant.

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” ― Arthur C. Clarke

You never know Aliens might already be on Earth, remember we only see 1% of everything.

We love you Chris Anderson! Awesome information...

At this point, in our mental evolution, there are too many people that couldn't handle the idea of advanced beings living on other planets somewhere in the universe. It's sad to think there are actually still people that truly believe our tiny planet is the only one in the ENTIRE UNIVERSE that could have advanced lifeforms. That sort of mentality is what will keep us from ever having the opportunity to interact with alien civilizations that could have knowledge to save ours someday. Right now, if they made themselves known, too many people would be fearful and aggressive if encountering an alien race. Imaging if an alien ship came to Earth and, for whatever reason, we couldn't understand what they were attempting to communicate. If they are that advanced I'm sure they would make their mission clear in a way we would understand. But if not, our militaries would do nothing but try to take them out with any weapons possible, just because we didn't understand.

What if we were actually somehow the first intelligent beings in the universe and will eventually be these aliens that we like to talk so much about?

What if WE are the most advanced?

A sense of humor made it all the more worthwhile. Why do scientists think radio signals are universal? Supposed a being became aware of a radio signal, what could that species look like?

We haven't found one yet.. because someone putted us here. And he did that for a reason. There has to be someone out there that controls everything.

We're proof, that life can evolve anywhere.

what if we are looking through the wrong planets?what if alien life need different atmosphere unlike ours to survive?

I have a theory, I saw a different documentary to this one ages ago, it was very scientific and told me that the 2 most versatile molecules in the universe are carbon and silicon, because they can both form complicated structures. So in theory, if there was a planet somewhere that has lots of silicon, and other molecules, there maybe a combination of molecules for a silicon based life form, and if that was to happen, or if it has happened, that life form would most likely be the most successful type of space explorers possible. Our own technology has gone through the roof since the moon landings, and it’s all thanks to silicon chips, and right now we are on the cusp of creating a silicon based life form. What if it’s not a coincidence? What if our constant hunger for newer better technology blinded us to the fact we were given this tech in the first place, and we are being steered towards creating an artificially intelligent species that they could turn on us at anytime. Am I completely nuts?

If humans start living on other plants in the future, they can turn into aliens because of gravity, sunlight and atmosphere differences.

I also have this question. I don't know if TED has already made a video on this but how do we know that the conditions similar to Earth's are the only conditions life can form or live under. Can't the conditions of something we consider inhospitable be the right for some other alien civilisation?

They probably think of us like we think of ants. They completely ignore us, and we can't comprehend them.

I just choose to believe that other life forms out there choose not to interact with us just because we're still babies to them in terms of development

While I don’t doubt, there is live on numerous planets, I do doubt, that the speed of light barrier can be broken. After a period of enthusiasm mankind will conclude, there‘s a limit on technical development and redirect resources into repairing and keeping our biosphere intact.

Earth is universe's Detroit so they avoid it like a plague

Who says that since we adapted to live on earth that other species arent capable of living in the conditions of other planets

Something doesn’t add up, stars are VERY far away, and civilizations probably exist hundreds or thousands of light years away, which means we are looking for thousands of year old signals from interstellar space, and we have only just developed within a few hundred years, so they probably didn’t even know we existed thousands of years ago, and probably won’t for thousands of years to come, idk

It is against all odds that we humans are either special or alone in this Universe. Regarding the absence of evidence about extraterrestrial life, I believe that we are looking for the signs of the life as we know it, because this is what we can perceive, detect, and establish. By definition, it is impossible to imagine, let alone explore, the unimaginable. However, can living organisms depart from the norms we are used to? Can life have other forms? If the UFO sightings do correspond to extraterrestrial visitations, and it is becoming harder with time to refute such phenomena, the visitors are - in comparison - surely more (technologically) advanced: given that the other planets and their natural satellites of the solar system do not seem to come anywhere close to life-sustaining habitats, the visitors must have (at least) solved the problem of travelling effectively through space-time. This basically places them several notches above us. In that case, the hope would be that they are not only more intelligent and advanced, but also wiser than us humans.

Maybe aliens looked upon the Earth and found no signs of intelligent life. Quoted by Neil deGrasse Tyson

technology may vary.. the techonology we use to find aliens may be different than that of aliens used to find us or other aliens..so it may be due to techonology mismatch.. so if 2+2+2=6 similarily 1+3+1+1=6 and 1+2+3=6 i may be using different digits to reach at 6 but the conclusion is 6.. we are using different techonologies for same solutions..

Advanced civilizations will reach a point where in the pursuit of utopia will realize this can only be achieved in a virtual environment. The only way to look outward is to look inward.

Maybe we haven't heard anything because everything we're looking at in the night sky is light that's millions of years old. Intelligent aliens would have had to been evolved enough to send a signal millions of years ago for us to receive it now. Maybe, like us, they're just not that swift.

A wise man once said: “ human curiosity leads to insanity “ that wise man is me ..

...or maybe life on earth is a scientific experiment of some more advanced civilization...;-)

My question is, do they have internet? If they do, do they use youtube, and laugh at our technology? Or better yet, do they laugh about us not being able to find evidence of their existence?

Ok. Just a weird thought from me... Is there any possibility that we humans could be the alien lifeforms that we are trying to find in other planets??

The distances are so vast we will never find any other life.

Two things to consider: 1) the age of the universe has been revised down to 11 billion years old. If the Earth is 4 billion years old, that's almost half universe's age for the Earth to form, cool, get a moon to stabilize it, collect water, and ensure its magnetic field is strong enough to filter out harmful rays from the sun. Then the dinosaurs would have to all die before any mammals can start taking over. 2) The early universe would have been too harsh for all or any of 1) to take place so if there is another form of life out there with intelligence, it would have to be no more advanced than ours. Since we don't yet have the technology or the knowledge to communicate with extraterrestrial life, so won't other life out there with us.

thank you sm for the video it realy feed my curiosity

The fact that the intro hasn’t changed and it’s been almost 10 years surprises me

What if the most powerful source to reach other life is our mind and how we use it...

What if dark matter Is created by aliens to "silence" any eyes looking too far in...

Very nice video with excellent narration. ..

*Intelligent life was intelligent enough to not get associated with us humans.* Well that's what I think.

The moment we detect complex extra-terrestrial life, I believe all the nations on Earth will finally realize how arbitrary and harmful borders are and will begin to work together as one human-kind.

cells in your body think they are alone too

Because space is huge and we're on a large rock far away from everything else, we may detect alien life once we somehow develop the technology to see microbes at up to 50 light years away, with modern technology that seems more plausible than actually traveling 50 lightyears.

One of the best explanations I have heard for the reason we haven't encountered aliens is we may exist at a different time. For example, imagine blinking lights on a Christmas tree. Some lights are on and others off, but few lights are on simultaneously.

"Why can't we find alien life?" "Because they're hiding in plain sight."

Maybe there are intelligent life beyond earth, it's just that we are so unintelligent they don't want to have anything to do with us, like you would try to avoid a violent abusive neighbor with a drinking problem

"Stay curious" loved that line.

The universe looks like a brain under a microscope. All the neurons connecting

It's only depressing if you can't appreciate how amazing life and the Universe truly are.

mabey aliens dont want to talk to us

Basically they say we're not ready and want to respect us and not frighten us. They are communicating in other formats to sort of approach us more delicately for those who are more open minded. They say we are also very concerned more with the messenger than the message; ie we're more interested in who they are than what they have to share.

the most convincing for me (not in this video) is that we are presently living in a tiny time frame while the rest are occupying other time frames so it would be impossible to be in the same moment.

An interesting hypothesis I've seen floated about is that maybe everyones listening and no ones broadcasting?

Aliens videos: *exist* 14 year old kids who think they’re “woke”: showtime

Maybe even after million years you'll never see such technical advancements that you saw in the last 100-150 years.

Humans talking about aliens Aliens: *sneezes oh someone's thinking of me *

Agghhh i just want to meet another life already.

wshoa, those hole made eyes at 1:20 ... thanks for showing me one of the bigest horrors I can imagine.

The Lion: how come we can’t get solid evidence of the Discovery Channel crew and scientists studying our family??

Because we haven't searched a fraction of even our galaxy?