Are We Alone In The Galaxy?
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- čas přidán 20. 05. 2024
- Are We Alone In The Galaxy? is a question that has been on people's minds for a very long time. It's a question that makes us think about the vastness of space and whether Earth is the only planet with life. With about 2 trillion galaxies out there, it makes you wonder if we are really alone even just in the Milky Way galaxy.
A new study from the University of Nottingham, published in the Astrophysical Journal, suggests that our galaxy could be home to 36 intelligent alien civilizations that can communicate. How did they come up with this number? They think this is actually a conservative guess. It's based on the idea that life forms on other planets in ways similar to how it does on Earth.
The scientists in the study think Earth isn't unique. They imagine other planets like ours, circling stars like our Sun, with civilizations that advance technologically similar to how humans have. They assume it takes about 5 billion years for intelligent life to evolve, leading them to estimate at least 36 civilizations in our galaxy.
Before, scientists used the Drake equation, which considers seven factors to estimate the number of intelligent civilizations. Those estimates were really broad, from none to a few billion. The new method refines this using more recent data and assumptions, suggesting there are likely between 4 and 211 civilizations that could talk to us, with 36 being the most likely number.
But finding these civilizations is a whole different story. These scientists say they could be thousands of light years away.
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#alienlife #universe #sciencetime - Věda a technologie
“The universe is a pretty big place. If it's just us, seems like an awful waste of space.” Carl Sagan.
No I don’t believe we are alone.
An unscientific comment by Sagan.
Ok, but who wasted the space?
Why would it be a waste of space? By who's measure?
yes, yes we are alone
I like your opinion, would you mind share more about it?
“We’re either alone in this world, or we are not. Both are equally terrifying.”
Wonder who said that?
It's NOT 'world' dummy!!
Neither option is terrifying. And we are not alone.
@@Cybersawzcarl sagan
We know we're not alone in this 'world'. Arthur Clark said this about the universe
It's a pretty low bar that we are setting if we are using our civilization as the standard for intelligent.
exactly 😆
Thst is often said, but we don't know it any more than we know there is even one other 'technical' civilization. Technology can develop further, but we have no idea how close we are to the fullest scientific knowledge we can attain.
What other civilisation would you compare it to? Do you know of any other?
Agreed.
psychobabble.
I think this raises an intresting point, the reason people want aliens to exist is because we want to communicate with then and gain their technology but we are making assumptions based on nothing but our own imagination of what aliens would be like, there are trillion species on earth and yet hardly any communicate with each other so to have such optimism that when we discover inteligent life forms they would want to speak with us is i believe absolutely ridiculous because there as species that do have the same amount of intelligence on earth that never speak to each other
The problem here is that you are comparing intelligent humanoids with animals, different compared to humanoids communicating with intelligent alien life.
@Amadioh Yours is a VERY valid point,
Considering the vast distances between the stars and the technology we have today, and the the laws of nature that we cannot circumvent, even if we are not alone we are still alone.
Just because we supposedly lack the technnology, and even that assumption shows a lack of awareness because a lot of extremely advanced technology is hidden from the public, does not mean that other advanced beings lack the technnology to visit us.
Also we are not alone. The ETs are here. We were never alone to begin with.
@@brianlittrell797proof?
@@jimmymartinez2277 You will have proof soon. The whole planet will.
Unless you are 83 years old, THEY have been here longer than you have. The technology "we" have today means nothing. It is ET technology that counts. You are limiting yourself by looking at "laws" from a 20th century viewpoint. You're still thinking that Einstein is smarter than some dude that is hundreds of years ahead of us.
Without Earth's tilt, which causes the seasons, the presence of Jupiter, whose gravitational pull protects us from the thousands of asteroids, and comets in our solar system, and the presence of our outsized moon, humans would probably not have evolved. The likelihood of similar coincidences having occurred in other solar systems seems remote. I'm guessing, if there are other civilizations in the Milky Way, there probably aren't as many as this video suggests.
A fan of the rare earth hypothesis I see. All of these factors seem important, and yes they may turn out to be true. However, how many factors does life need. All of them? None of them? The rare earth seems to be too anthropocentric to me. Our life has all these factors, therefore all life requires these same parameters. Im not saying thats what your saying i guess im just not a fan of it. Im hopeful that life can find a foothold in a wide range of environments. I just want to know for sure before I die, but i dont think i will lol 😆
I subscribe to the RE hypothesis. Certainly in our galaxy.
There are over 100,000,000,000 stars in our galaxy though and pretty much most of them have at least one planet orbiting
Except we have not evolved
Without all those, it is likely something else would of evolved on Earth and wonder the same thing. If that asteroid hadn't hit Earth 65 million years ago, wiping out dinosaurs, they would of continued to evolve and dominate the planet.
If Kepler 62B is covered by an ‘ocean’ one must ask of what material is this ocean. Is it salt water? Is it freshwater? Is it a stew of dissolvable chemicals? We must stop thinking of EXO planets as having environments similar to Earth’s environment.
K2 18b
Proxima centori b
Barriers not only include the wide distances between planets (where intelligent conscious self aware life forms like ourselves might exist), but also, the likely narrow time range in which species such as ourselves are likely to exist before going extinct. It may even be, perhaps, that species like ourselves are almost always destined to be no more than pin pricks on the time lines of their respective planets. Unless they choose otherwise.
Artwork of potential planets are stunningly beautiful.
I'm so sure that we'll run into other intelligent civilizations soon that I'm looking into new business opportunities.
Squid alien porn hub ?
You'll be dead way before that ever happens and you will never know if there was you people forget GOD put a life span on you 120 years then your no more without GOD it would truly suck to be uses for real wow hard to believe
We should really focus on the Milky Way and Andromeda to understand where we are. Other big galaxies are further away.
Nice topic and video, thank you "Science Time" !
Nooooo, we are not alone, we have our spirits... 😇
I think it's a pretty logical idea that this HUGE cosmos is full of all kinds of life forms and evolutionary occurrences. This is all just another expression of the universe...
How does this channel not have more attention
Could it be possible that we may be in a black hole n is unable to commutate with other celestial n extresial life forms n n they maybe on the verge of regaining commutation with us that may be lost since the dawn of human life forms we maybe the ones on the other side of those black wormholes ? Are we stuck in the blackhole n dont know it.?
Ain't nobody out there, we unique 😊
I not!
Is the Universe real with its unimaginable expanse or is it our mind painting a picture of something subtle in this form?
Nice graphics
Its awful how much suffering there must be in the Universe. Depressing.
Yep. And it gets even more depressing when you think about the multiverse.
You can't be friggin' serious?!
@@SuperYtc1 You are plenty enough depressing!! Go back to the basement..!!
@@larryslemp9698 😆😆😆 lol
I don’t think we should wish for being visited by being from another planet. Because if they could get here we might as well be in the Stone Age. We would have no answer if they wanted to take this planet from us.
My first thought would be they would be hostile
The distances are so vast that we will never find any type of life.
Assumption, likely, possible, assumption, possibility, likely, perhaps.
We are alone.
36, eh? Thanks for the hearty laugh, Science Time.
It just so happens that the closest habitable planet is right next to us...
The odds that we are alone are nearly impossible. The odds that we will never encounter anyone else in the universe is a near certainty, given the vastness that separates us. In my opinion, this means dwelling on the possibility is a waste of time.
where there is Nature there is life. life the living reality of the Nature and the Nature the living reality of the universe.
Considering how tiny thing planet Earth is and how tiny creatures we are, how even tinier creatures live around us and on us. I believe we are not the only living thing around, but I also believe we are living on something much larger we just absolutely cannot see nor comprehend it. Just as we look at atoms, the atoms would have no idea they are being looked at similarly we could be watched and have no idea it is happening.
That's exactly what I believe. We might be living on the body of a living organism, our universe is like an atom of that body. Also, if we look at our body through quantum physics , there's also micro organisms living on it.
we still dont know how life began on earth,so... maybe the probability for life to begin is so small that it is 1 in lifespan of universe.
Agree. We have no idea how life developed so we have no idea what needs to happen for it to develop. It might be like winning a huge lottery where only one person wins. So we could be the only one. Or maybe not. We really don't know.
_Are we alone in the galaxy?_ Maybe.
_Are we alone in the universe?_ *FUCK NO!*
There is no way we are the only one in our galaxy
@@qachingexactly, and our galaxy is a island universe in its own right. And NO WAY ARE WE ALONE! Now factor in time and space within the same time frame and able to communicate is odds i wouldn't touch!
Exactly man.....this guy's an idiot..!!
I’m alone in bed tonight, sadly..
FUCK YES
Yep
Love this video🔥
Cool stuff
You can most likely rule out planets orbiting red dwarves, because of tidal locking, it just does not seem plausible that intelligent life could develop on a small strip between the dark and light sides of the planet. This rules out roughly 90% of star systems in the galaxy.
Do you have a full paradigm of life? I didn't think we had one! We only know of life on this planet, and we are still trying to figure that out.
Actually looking at the Earth's history, its unlikely that any other planets anywhere in our galaxy would experience anything similar.
Earth's history is unique and special.
I believe in the rare Earth theory.
Its like being amazed of seeing people on another continent.
Nope... but because of the big universe we maybe never will meet them
We are it - you are only looking at potential to have water. There are too many other factors that are never discussed. Just a few 1) rotation of the planet and speed of rotation - if no rotation, we burn or freeze, same happens if it rotates too fast or too slow 2) size - if much bigger too much gravity, if smaller, we float away 3) only one moon that is located and is the same size as our moon - without it, there is no tides or tides are too strong 4) sun - about the same size, located at the same distance and only one, otherwise too much heat or too cold (all the above have to be within 1% of us) 5) don't forget Jupiter - it stabilizes our orbit and takes 99% of the hits from meteors 6) smaller things such as being hit by a 7 mile meteor a few million years ago at the right place that resulted in dust and nutrients being spread across the earth to support intelligent life. and I have not even begun to discuss the billions and billions of other needed factors that are needed at the right time. If intelligent life was a lottery ticket, it would have a billion, billion digits and no one would ever win.
It would actually be better if we were alone
They visited us about 5k years ago at sumarian era
Until/unless we figure out a way to either travel warp speed or use wormholes, we will never know.
Even light speed is a snails pace in the vastness of space.
Perhaps in 200 or 300 years we will ( if we're still here ) figure it out.
NO WAY are we alone in this universe. We just haven't found out who or what else is out there.
As far as I'm concerned, asking if we're alone in the universe is like grabbing a fist full of coins from your jar, only to walk out in the MIDDLE of the antarctic desert only to look at that handful of coins and say; Are these the only coins in the entire world???
Yea... We just need a better understanding of things and a higher technology.
"Are We Alone In The Galaxy?" simply - Yes
The nearest star is four light years away. Interstellar travel may be impossible so it doesn't really matter for intensive purposes. We're alone
The only problem with an aquatic world is that they will never have the need for fire so they would have no society as we might understand. Fire was what set mankind on the road to toolmaker.
Our own milky way galaxy is so huge indeed. If we are alone by chance, there is much waste of space!!
The universe doesn't care about a waste of space.
Which answer scares you more?)
Alone 100%. We are such a destructive and violent race. If we are alone that is truly very very sad for the universe. But we’re not alone anyway thankfully.
Alone because that would make no sense at all. The evidence for other life is overwhelming. It would be truly odd if we were on the only planet with life when there are 1,000,000,000,000,000,000,000,000,000 habitable planets in the observable universe. It would mean we’re in some kind of set up.
Depends who's asking...
As far as I'm concerned.. apart from historical notions... We are alone.. we remain alone.. only when ET practically stands in front of us... We will see what next to be done...
We are here and they are there, we just know where to look.
if we ever develop a way to travel faster than current theories allow, we first must get rid of our static kind of thinking. according to star trek (....) humankind only found a new way to approach the difficulty of faster than light travel after being decimised by a global nuclear war.
living present times i think we are getting close to that destruction, so it might be a possibility for a future human kind to achieve these goals.
There are approximately 16 billion yellow dwarf stars in our galaxy.
Assuming that nature is efficient and opportunistic, then there are many millions or billions of human civilizations in the galaxy. Including some relatively nearby. So why no alien visitors yet, human or otherwise? Two reasons. Interstellar space travel is highly unfeasible, and many civilizations have come and gone. Self-destructed. Interstellar space travel involves a lot more than just vast distances, but much worse is the fact that space is not empty. Space dust alone would wreak havoc on the hull of a fast moving spaceship.
And that number of stars is growing as we get better technology, especially on the other side of the galaxy. The number could reach 600+ billion stars if the theory pans out
I believe in life elsewhere. But I also think intelligent life is rare. Just look at earth: most life isn’t intelligent. And even most of us are dumb asses.
There’s definitely other life out there , however , Idk about space faring life
Most likely it's a LOT of animal life, but not the ones who can actually get off the planet before something happens that regresses the civilization.
It is mathematically impossible for life to not exist elsewhere in the Universe.
They have calculated with 1:1000 change every filter and the result is: we are alone!
I saw a nightmare, we were in war with Aliens tons of their ships surrounding.
Has anyone seen the same thing ever?
Even aliens couldn't travel at speed of light bruh, it's practically impossible to reach proxima centuari and you're thinking they would attack us lmao
We will probably never know because of the vast distances
Channel 1M type
Content 100M type
❤❤❤
Wow. Thank you
Well if there are any visitors, preferably in a UFO, kindly tell them "You can't park there"
If you go alone worldglobe universe capture with your one hand so be alonego ahead your life gone successfully ❤💞💪🙏🏻
We are not alone
It's just that we cant travel across the universe yet
It's like an ant colony in the europe will never meet another ant colony in the america naturally.. The distance, the obstacle, the lifespan of an ant will never get there😢
More than likely not, but, the distances are so vast, we might as well be.
there could be humanoids on a different planet who have been around as long as us but may not have even invented the wheel.
Why do we earthlings assume that the condition for alien life should be like Earth in outer space? Do alien even breath oxygen?
Because that is all we know. If you don't know what you are looking for, how could you know when you have found it?
Because we think like humans and all we know are how physics are here.
There could be a planet where intelligent life breathes methane, or one where they are made of gases,
or another where they breath under water.
We just don't know.
And to be fair, we may be it in this galaxy. The very first to reach intelligence, and its up to us to populate the galaxy.
We are probably not alone---- but other earth-like civilizations may be very very far away---- that is the difficulty. Our owne solar system suggests intelligent life supporting planets are not that frequent. We are the only intelligent life support planet EARTH.
We could have had an human foot print on the moon 50 years ago, and a civilization on Mars by now if there was need.
We are not alone, a mathmatically impossible fact.
yes
Yes! When we drunk 🥴 🤪 🤣
Let's hope any other 'intelligent' life out there isn't like ours and got it right.
Gotta say that the alien in the thumbnail is looking attractive.
We are not alone.
Definitely not we might not even be "alone" here
Am 100% sure we are not alone.
no you aren't
@@Allanwify i m
@@the_positiveinsaan You can´t be 100% unless you have prove.
@@Allanwify what type of proof is required?
To assume something is 100% without proof is just foolish.
billions of stars in each galaxy, think about it. we are just one star
They say that once a civilization reaches a certain level in the kardashev scale it destroys itself
Maybe thats the reason we havent found anybody
Funny thing is that maybe those other civilazations are also humans, exactly like us. Anything is possible.
4:24 why the big difference first i was told years ago 200 billion stars in the Milky way than 100 billion now 40 billion which is correct
200 to 400 billion is their best guess. As technology gets better, the number will rise. Some astronomers are now saying there could be up to 2 trillion galaxies. That number will rise also.
Just wait and see.
36 in our galaxy that can communicate ? Not bad but that means we have millions of years to go for contact due to distance and technology.
So is Mars in the Goldilock zone?
36? Including us?
37
Sometimes, I don’t know. is the smartest answer.
At one point the narrator states "this is speculative". I would say the whole video is highly speculative. I am in the Brian Cox camp with the view that intelligent life will be very rare in our galaxy, possibly non-existent. Until there is some solid evidence of radio or other emissions from other worlds this remains the likely scenario.
"'Kepler-62e at 1.6 times the size of Earth suggests it might have similar to Earth’s gravity"' Wouldn’t the planet have 60% more gravity? Would be like a 170 lb person carrying another 100 lbs on his back
Yes yes and yes we're ALONE... GOD give us this gift called LIFE,.. to explore understand and feel it the greatest of his creations around the universe.. humans are Old very Old to much old that they are already around the universe and their phisiology already had been transformed into a more advanced human beings.. but we're the same..😅
When it's time we'll know the answer.
We not alone what are the things falling from the sky from small to large, so the issue is we haven't invaded another planet or rock beside moon. For now that is dream we need mars only for now. Unlimited electricity regeneration non moving generation. That will last until we able to get mars working so we can get water on other planets and build our biggest spacestation that will have elevator 🛗 that get inside planets without using fuel ⛽ find ways to move on space without using water based systems by doing stuff like that we can say we truly adventures for now only know earth only
The Eternal Life, is the Only existing Reality,
have No neighbour, had always been Alone,
Life, is a Life-Unit,
Life-Unit-Principle make Us feel less alone,
Galaxy is a Life-Unit, when Life-Unit's leave Earth,
they will be born from with-in by natural Parents,
on other planets, in respect to their developing-standard.
The truth is out there.
😘🙏
All estimates of the number of planets with aliens assume an awful lot of assumptions, of which there is zero evidence. It's very difficult to make reliable estimates with a sample size of one (Earth). We have zero idea how probable it is for life to get started with Earth like conditions. We have also never found a planet just like Earth. I know it's not what people want to hear, but the best answer is that we don't know.
✅✅
Clearly there is a creator!
Why assume E.T.s are anything like us. Maybe they're like Avatar and they don't want to leave their world because unlike us they're actually happy and content.
The chance of any sort of life is extremely small, let alone an intelligent species that could communicate with us
We are not alone.We have Aliens who fly around the World in their UFO’s.They
are Highly Intelligent.They live in all parts of the Universe.If I am correct,I am
sure I have met Aliens before.It’s like trying to find Bigfoot and the Yeti.
5:24
[A Super Earth planet with alien life on it]
...Sweet Liberty... Fire up the Super Destroyer. We have to spread some democracy.
FYI: vision speed and light speed 2 different things, how kapler telescope 🔭 discovered 600 light years distance planet if vision speed is the same speed as light speed? They would see our current world not the past. We can see the sun in milliseconds but its light travels around 8 minutes to reach us.
The sun your viewing is 8 mins old
We're lucky to be alone cause some aliens eat planets