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Why we might be alone in the Universe

  • Why we might be alone in the Universe


    There are trillions upon trillions of stars and worlds in our Universe. Faced with such large numbers, it's tempting to conclude that there must surely be other life out there, somewhere. But is this right? Could the probability of life beginning be a number so small that we are alone? A video essay by Professor David Kipping.

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    Further reading and resources:
    ► Chen, Jingjing & Kipping, David (2018), On the Rate of Abiogenesis from a Bayesian Informatics Perspective, Astrobiology, 18, 12:
    ► Hanson, Robin (1998), Must Early Life Be Easy? The Rhythm of Major Evolutionary Transitions:
    ► Benzene in space materials and story:
    ► Columbia University Department of Astronomy:
    ► Cool Worlds Lab website:

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    ► Tour of the J. Craig Venter Institute by Hedrich Blessing Motion and Sound:
    ► Tardigrade footage:
    ► Yellowstone park footage:
    ► Bill Nye interview with Rita Braver aired on CBS Sunday Morning July 10 2016:
    ► Neil deGrasse Tyson interview with Charlie Rose aired on PBS May 26 2015:
    ► Carl Sagan interview with Charlie Rose aired on PBS May 27 1996:
    ► Brian Cox interview on This Morning, ITV aired December 2 2014:
    ► Milky Way animation by Stefan Payne-Wardenaar:

    Films clips used:
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    ► Them! (1953)

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  • Why We Might Be Alone in the Universe


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    Why does it appear, that humanity is the lone intelligence in the universe? The answer might be that planet Earth is more unique than we've previously assumed. The rare earth hypothesis posits exactly this - that a range of factors made Earth exceptionally unusual and uniquely able to produce intelligent life.

    In upcoming episodes we’ll be exploring the anthropic principle and its two main versions - the strong and the weak anthropic principles. The strong anthropic principle tells us that the observed universe must be able to produce observers - including the contentious idea that this predicts the existence of universes beyond our own. But in today's episode we’re going to focus on the weak anthropic principle. It says that we must find ourselves in a part of the universe capable of supporting us. For example, in a planetary biosphere rather than floating in the void between the galaxies. This may seems tautological, but accounting for this observer selection bias is important to understanding why the universe looks the way it does from our perspective. And the weak anthropic principle is much more useful than that. When combined with the apparent absence of alien civilizations, it may tell us why intelligent life is incredibly rare in our universe.

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  • Are we Alone in the Universe? Perhaps yes, and heres why.


    New video with less provocative conclusion here: . Are we alone in the universe? 5 Reasons we are (probably) completely alone in the universe. A government funded program called SETI, or the Search for Extra Terrestrial Intelligence has been listening for intelligent life in the universe, with their radio telescopes, for past 50 years, but so far NOTHING has been found.

    Is it possible that the hundreds of scientists around the world that are looking for intelligent life are on a futile mission to nowhere –because there is actually NO OTHER intelligent species in the entire universe – The shocking answer could be – YES. I’ll explain why.

    There are more stars and planets in the universe than all the sands on all the beaches of the world. How is it possible that we could be the only intelligent life out there. I am talking about intelligent life, not just any kind of life. I think ordinary life is probably everywhere in the universe, and I predict there is life within our own solar system. See my other video on this subject. Intelligent life is a completely different animal, no pun intended, than simple forms of life like bacteria and viruses. There is a good chance that there is NO other intelligent life…and here are 5 reasons why:

    5) Earth has a very large moon compared to its home planet. And this moon was formed due to a colossal impact with another planet early in earth’s history. This collision caused the earth to almost completely melt, which led to molten iron being pulled to the center of the earth. The reason this is important is because it is the flow of this iron that allows earth to have a relatively strong magnetic field. Without this field, life would not exist, because cosmic rays would have wiped out any early life. The moon also gives the earth orbital stability, and has absorbed potential meteor impacts that would have otherwise devastated earth. Such massive collisions are probably rare in the universe.

    4) There was a massive extinction event that occurred on earth about 500 million years ago – long before the age of the dinosaurs.Over 80% of all life on earth was wiped out. But luckily for us, a tiny creature less than 2 inches long, called Pikaia, which had a backbone, survived. This creature is the ancestor of all animals with a backbone – including us. If it had not survived that extinction, we would not be here.

    3) For over a 100 million years, mammals were small mousey shrew-like creatures that lived under the shadow of the dinosaurs. They only came out at night because during the day, they would be easy prey for the huge dominant species of the day - dinosaurs. The only reason mammals dominate the earth today, and by the way, we are the most dominant of the mammals, is because the dinosaurs were wiped out by a huge 6-mile-wide asteroid that fortuitously killed our overlords, about 65 million years ago. It if wasn’t for that lucky asteroid, we wouldn’t be here.

    2) Arid conditions hit East Africa millions of years ago. It didn’t happen anywhere else, but only in East Africa. It so happens, that living in east Africa at that time were tree dwelling apes, that were forced to leave the trees and journey into the grasslands below to find food to eat. Not only did this force these primitive primates to stand upright, which freed up their hands for using tools, but it also forced a huge increase in brain size… Because these animals needed a much bigger brain, and higher processing power to help them find food. We are a direct descendant of these primitive apes. If these arid conditions had occurred anywhere else on the globe, it would not have resulted in us.

    1) There have been millions of species of animals that have lived on earth. In fact, many more animals have gone extinct on earth than are living today. But out of all those species of animals that have evolved nearly every feature and trait that you can think of….only ONCE. That’s right, only ONCE has the trait of higher intelligence evolved. We are the only animals that have ever lived on earth over its 4 billion year life-span, that has evolved to be super intelligent. Intelligence is by no means an inevitability in the course of biological evolution. If it was, then there would have been many such evolutions of highly intelligent species who would have inhabited the earth over its 4 billion year life span.

    Had we not had many strokes of luck and multiple events going our way, we would not be here at all. Thus, it is quite possible that we may be listening with our radio telescopes to complete silence because there is no one else out there…other than us…imperfect humans on a tiny rock…orbiting an unremarkable star…in an ordinary galaxy…in a generic point in the universe. All we have is each other. So, there is a cosmic reason that we should be kind to each other.

  • Why We May Be the Only Intelligent Life in the Universe with David Kipping of Cool Worlds


    Are We Alone? Are we the only intelligent life in the universe? Are there alien civilizations?

    Prof. David Kipping of the Cool Worlds lab at Columbia University spoke with John Michael Godlier about his most recent paper. What are the odds for intelligent life? Are there alien civilizations in the galaxy? Or are the odds against intelligent life?

    Prof. Kipping attempts to find answers to these questions using a Bayesian Analysis to look at life’s early start and our late arrival. The rare earth hypothesis argues that the origin of life and the evolution of biological complexity required an improbable combination of astrophysical and geological events and circumstances.

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    Kipping, D. 2020, An Objective Bayesian Analysis of Life’s Early Start and Our Late Arrival, PNAS:

    Carter, B. 2007, Five or six step scenario for evolution?, Int. J. Astrobiology 7, 177:

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  • Why We are Alone in the Galaxy | Marc Defant | TEDxUSF


    NOTE FROM TED: We've flagged this talk, which was filmed at a TEDx event, because it appears to fall outside TEDx's curatorial guidelines. The sweeping claims and assertions made in this talk are based on the speaker’s own theory and lack legitimate scientific support. TEDx events are independently organized by volunteers. The guidelines we give TEDx organizers are described in more detail here:

    The origin of intelligent life on earth requires a host of statistically improbable events which may imply that similar intelligent life elsewhere is extremely unlikely, a fact mostly ignored in discussions about contacting extraterrestrial life.

    “Marc Defant is a professor of geochemistry at USF and studies volcanoes through various funding such as the NSF and National Geographic. He has published research in Nature and other journals and has written a book on the history of the universe, earth and life. He was the keynote speaker at a conference on granitic rocks in China and was one of the first American scientists to work on volcanoes in Kamchatka when it was part of the Soviet Union. He is currently focused on emphasizing the importance of science in society.”

    This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at

  • What if We ARE Alone in the Universe?


    What if We ARE Alone in the Universe? – Second Thought

    We’re going to do something a little different today! In this video we’ll engage in a simple thought experiment and consider what would change if we knew we were alone in the universe, as well as two modifications of that premise. Make sure to leave a comment with your thoughts!

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  • Study suggests humans alone in universe


    New research from Oxford University claims there's likely no intelligent life outside of Earth.

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  • Are We The Only Intelligent Life in the Universe?? | Joe Rogan & Brian Cox


    Taken from Joe Rogan Experience #1233 w/Brian Cox:

  • Are we alone in the universe? - Neil deGrasse Tyson


    Are humans so dumb that aliens have written us off? Celebrated astrophysicist Neil deGrasse Tyson seems to think that may be the case.

  • Are We Alone In The Universe?


    Is Earth the only planet supporting life? Where are the aliens hiding?
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  • Where are all the aliens? | Stephen Webb


    The universe is incredibly old, astoundingly vast and populated by trillions of planets -- so where are all the aliens? Astronomer Stephen Webb has an explanation: we're alone in the universe. In a mind-expanding talk, he spells out the remarkable barriers a planet would need to clear in order to host an extraterrestrial civilization -- and makes a case for the beauty of our potential cosmic loneliness. The silence of the universe is shouting, 'We're the creatures who got lucky,' Webb says.

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  • Are We Alone in the Universe? | THE FERMI PARADOX


    The Fermi Paradox says that we should have encountered alien life by now, so why haven't we? We give 20 good reasons here!

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  • Are You Alone?


    Are you alone? To answer this question we have to take a look what you are first. What are you made of and where you stand in this universe. Are you your body? Your atoms? And how are your parts connected to the big picture?

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  • Is There Life Beyond Earth? – Sadhguru Answers


    Are we alone in the universe? Sadhguru answers a question that has been bothering generations of stargazers and astrophysicists alike.

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  • Are We Alone in the Universe? | Ask an Expert


    Is there other life 'out there'? Professor Phil Bland, of Curtin University's Space Science & Technology Centre, explains why he's hopeful.

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  • Are we alone in the universe? Where are all the aliens? Fermi Paradox Solutions & Drake Equation


    Do Aliens exist? Are we alone in the universe? Where is everyone? Fermi Paradox and Drake Equation: Where is everyone? You probably already know that there are more stars in the universe than all the sands on all the beaches of earth. In fact, Keppler data shows that just within our own Milky Way galaxy, there may be 10 billion earth-size planets orbiting sun-like stars in the habitable zone of its solar system.

    Physicist Enrico Fermi, in the 1950’s, asked why, given the vast number of potential planets with life, haven’t we been contacted by aliens yet?
    Fermi reasoned that any civilization could colonize the galaxy by building AI robot probes that could self-replicate as they journeyed beyond their home planet. Even though the distances between habitable planets are much too vast to be traversed in a human lifetime, the theoretical robots would have had millions or even billions of years to make the journey.

    This seems to be a reasonable assessment because when our instruments look out into the universe, we can see that the materials and conditions for life that are present here on earth, But the fact is that our instruments can see no evidence from all our observations of any tell-tale signs of intelligent life anywhere in our solar system, our galaxy or the rest of the observable universe.

    In order to detect the kind of signal that Fermi was talking about, that life also has to be super intelligent…One that sends out electromagnetic signals. And in order for us to detect intelligent life on other galaxies, that species would have to be a space colonizing species. Such a galaxy should light up unnaturally. So even having intelligent beings on a planet is not enough, because many intelligent beings have evolved on earth, but super intelligence – space-faring species, like us humans, only evolved only once over 4 billion year on earth.

    The Observation selection effect creates a bias in our thinking because no matter how unlikely super intelligence in the universe is, because it has happened here on earth, we are biased to think that it should be easy and can happen anywhere, no matter how unlikely it actually is.

    There are several features of our evolution that makes it reasonable to assume that we got here due to extreme circumstances. For example going from simple single cell bacteria to complex organelle-containing cells from which all complex animal life came took about 1.5 billion years on earth to evolve. But maybe the natural progression of such an evolutionary leap is on the order of 20 bilion or more years.

    There is no evolutionary reason for life forms to be a space colonizing species. There is nothing that it does to our species to help us eat or reproduce better. We don’t seem to have evidence that this intelligent life form will continue to evolve into a super intelligent life form like we did.

    We can look at the fermi paradox mathematically. The Drake Equation shows the many variables used to estimate the number of active extraterrestrial civilizations in the milky way galaxy.

    N = R Fp Ne Fl Fi Fc L

    R= average rate of star formation in our galaxy
    Fp = fraction of those stars that have planets
    Ne = avg number of planets that can support life per star that has planets
    Fl = Fraction of planets that can support life that actually develop life
    Fi = fraction of planets with life that go on to develop super-intelligent life
    Fc = fraction of civilizations that develop a technology that release detectable signs into space
    L = length of time that such civilizations release detectable signs into space

    Fi – is an utter guess, and may be an extremely small number. Fp is large, nearly 1, but our failure to detect intelligent life tells us that there may be a filter or several filters that prevents super intelligent life from emerging.

    There is a possibility that there is a great filter between where we are now and the beginning of earth. Or there is a great filter between where we are now and some event in the future that prevents intelligent life from colonizing the galaxy.

    This is why finding life on one of the other planets in our solar system would spell doom for us. Why? Because Finding a life form that evolved independently of earth on a planet in our own solar system, would mean that life is likely very easy to evolve. This would mean that we are probably staring straight down into the barrel of the gun that is about to fire in our face. The great filter – would be an event that is likely to spell the death of our civilization and technology. So let’s hope that there is no other life on our own solar system.

    There are theorists that say that aliens are keeping us like in an alien zoo and have conspired to make us unaware of it.

    The simplest explanation is that Intelligent life is very difficult to evolve. It fits all the evidence. But given the size of the universe, even if life is extremely rare, it can still be abundant.


  • Are We Alone? | How the Universe Works


    There are billions of stars in our galaxy, with billions of planets circling them. But, as far as we know, only one planet has life: Earth. But are we really alone?

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  • Are We Really Alone In The Universe? | Answers With Joe


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    The Rare Earth Hypothesis is the idea that the conditions that created life on Earth are so specific to this planet that it can't happen anywhere else in the universe. Here's some of the evidence to back this up.

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    The Rare Earth Hypothesis something of a solution to the Fermi Paradox that points to several characteristics of Earth that may be required to keep life stable long enough to become intelligent, and these several traits may be incredibly unique in the universe, making intelligent life in the universe incredibly rare.

    Some of these factors include:

    Special place in the Milky Way
    It turns out our position in the Milky way might be beneficial as the low star density prevents other stars from messing up our orbits.

    The right type of star.
    Our sun is a G2 main sequence star that remains stable for a very long time.

    Rocky planet in the Goldilocks zone
    Earth is just the right distance from the sun to form liquid water.

    Magnetic Shield
    We're the only rocky planet with a magnetic shield protecting us from solar radiation.

    Jupiter and the outer gas giants protect us from asteroid and comet impacts, and this might be rare in the universe.

    Tectonic activity
    We're the only planet with tectonic plates constantly rebuilding the crust.


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  • Are we alone in the universe?


    Will we ever find intelligent life in the universe? Astrophysicist Jackie Faherty explains two ways scientists approach answering this age-old question.

    If you want to know if there are dinosaurs still alive today, watch this week’s Dinosaur video:

    #Universe #Aliens #AreWeAlone #SpaceVsDinos #AMNH

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  • Are We Alone in the Universe?


    Is Earth the only planet that currently supports life? Scientists are continuing to search for signs of alien life, and the James Webb Space Telescope will play an important role in their search.

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  • The Fermi Paradox - Are we alone in the Universe?


    The Fermi Paradox - Is there life in our Solar system?
    Is there life in our galaxy?
    Is there life anywhere else in the vast Universe??

    Given the the size of the Universe with an unimaginable amount of stars and solar systems....there has to be life out there somewhere....surely?

    Many of us have often thought......are we alone?
    Is there life in our Solar system?
    Is there life in our galaxy?
    Is there life anywhere else in the vast Universe??

    Given the the size of the Universe with an unimaginable amount of stars and solar systems....there has to be life out there somewhere....surely?

    In 1950 physicist Enrico Fermi asked this question amongst colleagues and quickly went to work on calculations on the probabilities of life existing elsewhere.

    Just in our own galaxy, the Milky Way...... which is thought to contain up to 400 billion stars.... Estimations suggest there are roughly 20 Billion stars composed just like that of our Sun.

    If just 1 in 5 has an earth like planet in orbit within the habitable zone, also known as the ‘Goldilocks zone” where it is not too hot or too cold, that would give us 4 Billion planets that could potentially support life....

    If just a mere 0.1% of these Earth analog planets do actually have life within them.... then this amounts to 4 million life dwelling homes.

    If just 0.1% of these planets contain ‘intelligent life’ comparable to humans....that gives us 40,000 civilisations

    And if just 0.1% of these civilisations we’re capable of space flight and like humans, are explorers who want to expand to other planets, then there will be 40 whizzing about in space around the Milky Way!

    And this is just from using low estimates.

    But the problem is.....we have ZERO evidence that these calculated probabilities are actually happening! And this is the basis of The Fermi Paradox.

    So where are they?

    There are many theories as to why we are yet to detect any other forms of intelligent life...and these include....

    We are the first to emerge with technology capable of transmitting and receiving communications across space and therefor it is currently impossible to make contact.

    Natural disasters such as super volcanos or large asteroid impacts are wiping out developing civilisations.

    Weather conditions and climates on other planets could be too unstable to sustain life long enough for sufficient evolution development.

    Their planet is poor on resources so may never have the ability to progress technologically.

    Other civilisations are choosing not to look outward.

    Maybe we are just not able to detect them through incompatible technologies, using methods and devices we have no understanding of.....or you could say....completely alien to us!

    Other civilisations that may have became capable of communication have already lived out their existence and no longer exist, possibly by destroying themselves through wars, or with much more powerful and advanced technology! But should we be able to see some form of evidence of previous existence in the cosmos?

    Maybe, just maybe we are a fluke, an anomaly, and are the only ones out there....anywhere!

    Or worse yet, we could have been created, physically or virtually, and are currently being observed by a super intelligent species hiding from us, just to see how we develop. We could potentially be some sort scientific experiment that could end anytime!

    It’s a scary thought.

    Whatever the truth actually is......we may never discover it.

    But that will not stop us from trying.

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  • Are we alone in the universe?


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    This week, Tech 24 takes a look at the search for extraterrestrial intelligence. Today, scientists believe that using artificial intelligence could be their best shot at helping intercept signs of alien intelligence.
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  • Are We Alone in the Universe?


    UNSW Physics Outreach investigates some of the biggest questions in physics.
    In this episode we asked six scientists (from various institutions) at the University of New South Wales about our search for life in the universe.

    Previous documentary What happened before the big bang?:

    Prof. Paul Davies (Arizona State University):
    Dr. Jonti Horner (University of Southern Queensland):
    Dr. Lucyna Kedziora-Chudczer (UNSW Australia):
    Dr. Jonty Marshall (UNSW Australia):
    Dr. Vincent Smith (University of Bristol):
    Mr. Shane Hengst (UNSW Australia):

    Director, Camera & Editor: Don Kountouris
    Special Thanks:
    Footage Island, NASA ArtSpace & Beachfront B-Roll
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  • Is There Life Beyond Earth?


    Scientists are leaping exponentially closer to finding life beyond Earth. Missions to Mars and Saturn’s moons are prime candidates for finding the first signs of life and NASA can now identify more than 3,500 planets outside our solar system, many with habitable temperatures. That number is quickly growing as space travel technology improves and probes head deeper into the galaxy.

    Nuclear physicist Taylor Wilson explores one of our civilization's most perplexing questions: Are we alone?

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  • Are We Alone In The Universe? - Professor Joseph Silk


    The question of whether we are alone in the Milky Way (or in the universe) is one of the most intriguing questions in science and astronomy. Our solar system formed half way through the history of the universe, and many sun-like stars that host planetary systems are billions of years older than our Sun.

    The odds of finding evidence for life are unknown, but the search continues as astronomers observe the nearby universe for earth-like planets and seek signs of life on exoplanets that resemble the earth in terms of atmosphere, composition and climate.

    The answer to are we alone? affects our claim for being special in the cosmos, and we shall never know unless we search.

    The transcript and downloadable versions of the lecture are available from the Gresham College website:

    Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.


  • Are we alone in the Universe? | Kevin Heng | TEDxBern


    Are we alone? This is one of the oldest questions in human history.
    A more modern take on the question is: How can we scan the universe? he Singaporean Kevin Heng is a Professor for Astronomy and Planetary Physics at the University of Berne and Director for the Centre for Space and Habitability (CSH). He writes columns for the American Scientist Magazin and has written a textbook about the Atmospheres of Exoplanets. In order to observe these planets closer-up, he would love to be able to travel faster than light. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at

  • ANCIENT ASTRONAUTS: Are We Alone In the Universe? Comercial FREE Movir Rental



  • Living Universe | Journey To Another Stars - Documentary 4K


    The Earth is Not Alone:
    LIVING UNIVERSE is an interstellar adventure that seeks to answer the most profound question of all: are we alone? Based on the latest scientific knowledge, we will take a journey to a planet beyond our solar system in search of life.

    We ask the world's leading space scientists what we might find if we travel to a neighboring star system. Recent breakthroughs have proven that every star we see in the sky is orbited by at least one planet, many similar to our own Earth. How do we get to these exoplanets? Once there, what will we find? And what will it mean for humanity when we discover we are not alone?

    Our speculative journey through space is set a hundred years in the future - when we have the technology to journey well beyond our solar system. On this first expedition, our star ship Aurora will be piloted not by astronauts, but by the artificial intelligence (A.I.) we call Artemis. We imagine how Artemis travels through space, on its 25-year journey, at one fifth of the speed of light. Its objective is Minerva B, a planet much like our own, with an atmosphere, temperature and liquid water that appears a likely candidate to contain life.

    With spectacular special effects we will reach and explore a new planet as we seek to answer the most profound question of all: are we alone in the universe? Our guides on this journey are narrator Dr Karl Kruszelnicki and as the voice of our AI, Artemis, real-life astrophysicist, Professor Tamara Davis.

    Inspired and informed by our rapidly developing knowledge of far-off worlds, our best scientists - including NASA engineers, astrophysicists and astronomers - we will discover that this amazing journey is not only possible, it is inevitable. To venture into distant space is our destiny.

    LIVING UNIVERSE captures a pivotal moment in the human story. A film full of insight and inspiration certain to thrill anyone who dreams of distant worlds, or have ever wondered why are we here?

    Have you ever wondered that someone like you, sitting less than a mile away, in some other universe, exists? The possibility in itself seems frightening as well as astonishing.

    From breaking news and intriguing historical documentaries to conspiracy theories, classified NASA files and UFO's. We provide you with material that the government doesn't want you to see. The Insomnia team comes up with a promise. To keep up with the same, the team now brings to us a documentary that aims to change your perspective Of another existence, of another possibility, as today, the scientists now believe there may really be the presence of a parallel universe - and in fact, also believe that there may be an infinite number of parallel universes, and where we live today just happens to be only one of them and many of these other parallel universes come with different laws of physics as well.

    These other universes that we are talking about not only contain space, time and strange forms of exotic matter but to surprise you, Some of them may even contain you, only maybe in a slightly different form. The thought itself is quite intriguing and scary on the same hand. The basis of this theory is as we know it the idea that parallel universes are constantly spinning off from reality that we humans know of. Though generally ignored at the time, that theory has gone on to become not just a popular topic of study among respected physicists, but the inspiration for such popular films, television shows, and books as Star Trek and The Golden Compass. according to the sources.

    The video soon progresses into the Wilkinson Microwave Anisotropy Probe (WMAP), that is now changing everything, as some say that the remarkable images reveal the true shape of the universe through baby pictures of the same from the time when it was 4 hundred thousand years old, looking so back in time, when there wasn't even the formation of galaxies yet. The WMAP is catching the very first signs of creation as it is officially tagged with measuring radiation that is left over from Big Bang. And now scientists have devised an experiment to find the overall true shape of the universe. The WMAP hence shows that the universe is flat. From here arises the possibility of more mind boggling parallel universe that are of the level-2 type and is made up of giant cosmic soap bubbles that float in hyperspace. Each of these bubbles within it has a whole universe. Now, the question that arises is that - Do we all live in a giant cosmic bubble?

    Journey to another stars
    finding lives on other planets

  • Power of 10 - Are We Alone In The Universe?


    An exciting journey in a 10 million light-years...
    A 59 Quintillion miles away from our very HOME (Earth)...
    Questions that come into our minds...
    Who are we?
    Where are we going?
    From where did we come from?
    Or... What do we represent in the Universe?
    Are we alone in the universe?

  • 10 Biggest Universe Mysteries We Cant Crack Yet


    When will our universe end? Many astronomers agree that this might happen some 2.8 to 22 billion years from now. The thing is that if the Universe is expanding (and it is), it means it was born from a much more compact state. Like Rhode Island. And if it does have a beginning, it's likely to come to an end too! But how exactly will it happen?

    By the way, does our Universe have an edge? What happened before the Big Bang? How come we know next to nothing about dark matter and dark energy? What if there are no black holes? Will we ever find the answers to the most intriguing questions about the Universe? Let's talk about some cosmic mysteries that scientists still hope to solve.

    #spacefacts #universe #brightside

    What if there are no black holes? 0:32
    Is there going to be a Big Crunch, a Big Rip, or a Big Freeze? 1:37
    What was there before the Big Bang? 3:14
    What if our Universe is just a simulation? 4:11
    If the Universe has an edge, what's there beyond it? 4:48
    What if our Universe is just a part of Multiverse? 5:52
    What is dark energy? 6:26
    What does dark matter consist of? 7:08
    Why is the Sun kinda too hot? 8:11
    Are we alone in the Universe? 8:57

    Other videos you might like:
    13 Scariest Theories That'll Make Your Blood Run Cold
    A Mysterious Object Punched a Hole in the Milky Way, Scientists Are Confused
    What Would a Journey to the Black Hole Be Like?

    Preview photo credit:
    Artist's logarithmic scale conception of the observable universe: By Unmismoobjetivo, CC BY-SA 3.0
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  • 3 Reasons We May Be Alone In The Universe


    The universe is a truly huge place and, certainly, our planet isn’t the only one with living things on it, right? It’s tough to say for sure, but here are three reasons that we, in fact, could be all alone.

  • Galaxy-Scale Catastrophes...Why We Might Be Alone in the Universe - Professor Brad Gibson


    Galaxy-Scale Catastrophes...why we might be alone in the Universe by Professor Brad Gibson (University of Hull) on 09/02/2018.

  • Are We Alone in the Universe


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    Are We Alone in the Universe · Kas:st


    ℗ Intimate Silence

    Released on: 2019-04-22

    Composer Lyricist: Kas:st

    Auto-generated by YouTube.

  • What If Were Alone In The Universe? | Unveiled


    What If We Are Alone In The Universe?

    Voice over:

    What Would Happen If The Sun Suddenly Disappeared?

    The question whether life exists elsewhere other than just on Earth has remained a mysterious one for quite some time. It is doubtful that we are alone taking into consideration the limitless and vastness of the universe. If anything, the last two decades have revealed more to humans about the universe than ever before.

    Many thanks to the Kepler Space Telescope. Discoveries that were made a while back indicate that on average there is one planet orbiting every star in the immense universe. Notably, it is correct to say that there are more than 100 billion planets in our galaxy alone. With a hundred billion galaxies in the universe, the total number of planets in the universe is unimaginable.

    However, to conceptualize how vast the universe is, astronomers believe there are 10,000,000,000,000,000,000,000 (10 to the power of 22) planets in the whole universe.

    The National Aeronautics and Space Administration (NASA), for instance, in 2014 discussed the search for Earth resembling planets. These Earth-like planets could be hosting life. The space agency reckoned that in a few decades to come, the suspicions that indeed humans are not alone are going to be proved if not confirmed. In that same year, the Kepler Space Telescope recorded information of planets much like the Earth. The most exciting thing about these planets is that they are in what is called the “habitable zone” of a star.



    ARE WE ALONE in the UNIVERSE? The Bible says NO! But, is there human life on other planets? Is someone asked you where to God in the Bible to show what God says about aliens, extraterrestrials, and life on other worlds: WHERE would you go? That is what this three-part message explains today! Above the softness of our blue-green planet, there are hostile forces poised! They range across space lurking and flying about at their master’s bidding. They are former angels—Satan the dragon’s army. They are deadly, vile, malignant, and very intelligent (in Greek, “demon” means “intelligence”).
    These aliens to our planet are highly skilled, incredibly powerful, and usually invisible warriors. Demons can hear us talk, pass through walls, fly through space, inhabit human and animal bodies, alter human behavior, and afflict humans with diseases, anguish, and turmoil. These extra-terrestrial beings can take on various forms that look human, look powerful, and look fearsome. They are watching over the realm of the serpent and his seed. You see, we saints of God are at war.
    As the end of the world approaches, so does earth’s darkest hour. Hell will soon open, and the pit will vomit out its demon hordes to run wildly throughout humanity. Other beasts from the abyss will globally wreak death and destruction. Satan himself will invade the earth and seemingly conquer it at last.
    At the helm, the visible leader of the world will be the long-promised man of sin, the lawless one, the beast, the coming world leader—commonly known as the Antichrist. But behind him, the real power will be the god of this world, the dragon, old Lucifer, the lying serpent of Eden.
    Imagine what it would be like if that perfect leader were to step forward tomorrow—a man who appears to seemingly come out of nowhere—almost a person from the past who rolls into one all the great leaders of the world. Imagine one man with the strength of a Caesar, the military genius of an Alexander, the mesmerizing oratory of a Hitler, the warmth of a Ronald Reagan, the ruthless determination of a Genghis Khan, and the apparent compassion and tenderness of Jesus Christ!

    For more of Dr. John Barnett's Bible teaching messages go to

  • The Odds of Life and Intelligence


    If we re-ran Earth's clock, would life arise again? Would another civilization eventually evolve? Astrobiology is faced with trying to contextualize our place in the Universe using just a single data point. But even a single data point contains information. The key to unlocking it is a careful understanding of the selection biases at play and intricacies of Bayesian statistics. Today, we're thrilled to present to you our explainer video of a new research paper led by Prof David Kipping that provides a direct quantification of the odds of life and intelligence on Earth-like worlds, based on our own chronology. Presented & Written by Prof. David Kipping.

    This video is based on research conducted at the Cool Worlds Lab at Columbia University, New York. You can now support our research program directly here:

    Previous episodes to catch up on:
    ► Watching the End of the World:
    ► Why We Could Be Alone:

    ► Kipping, D. 2020, An Objective Bayesian Analysis of Life’s Early Start and Our Late Arrival, PNAS:
    ► Spiegel, D. & Turner, E., 2011, Bayesian analysis of the astrobiological implications of life's early emergence on Earth, PNAS 109, 395
    ► Carter, B. 2007, Five or six step scenario for evolution?, Int. J. Astrobiology 7, 177 :
    ► O'Malley-James, J. et al. 2013, Swansong biospheres: refuges for life and novel microbial biospheres on terrestrial planets near the end of their habitable lifetimes Int. J. Astrobiology 12, 99:
    ► Bell, E. et al., 2015, Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon, PNAS 112, 14518:
    ► Smith, H. & Szathmáry, E. 1995, The Major Transitions in Evolution, Oxford, England: Oxford University Press
    ► Schopf, W. et al., 2018, SIMS analyses of the oldest known assemblage of microfossils document their taxon-correlated carbon isotope compositions, PNAS 115, 53:

    Video materials & graphics used:
    ► Berkeley Lab/Sloan Sky Digital Survey:
    ► Life Beyond by melodysheep:
    ► K2-18b animation by ESA/Hubble, M. Kornmesser:
    ► Earth 4k by NASA/ESA/M.Kornmesser:
    ► Galaxy spinning animation by Huy Trường Nguyễn:
    ► Earth timelapse from NASA DSCOVR EPIC:
    ► Animation of GJ1214b by ESO/L. Calçada:
    ► Roulette table by steveh552:
    ► Sky timelapse by National Geographic:
    ► Milky Way animation by Stefan Payne-Wardenaar:
    ► Outro by Carl Sagan from his book Pale Blue Dot
    ► Thumbnail image licensed through, image #8872987 by RAStudio

    Movies/TV scenes used:
    ► Agora (2009)/Focus Features
    ► The Martian (2015)/20th Century Fox
    ► Noah (2014)/Paramount Pictures

    Music used in chronological order:
    ► The Sun is Scheduled to Come Out Tomorrow ( by Chris Zabriskie ( licensed under a Creative Commons Attribution license (
    ► Cylinder Five ( by Chris Zabriskie ( licensed under a Creative Commons Attribution license (
    ► Cylinder Two ( by Chris Zabriskie ( licensed under a Creative Commons Attribution license (
    ► Stories About the World that Once Was by Chris Zabriskie ( licensed under a Creative Commons Attribution license (
    ► Painted Deserts by Shimmer, licensed through

    And also...
    ► Columbia University Department of Astronomy:
    ► Cool Worlds Lab website:

    Latest Cool Worlds Videos ►
    Cool Worlds Research ►
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  • Alone In The Universe


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    Alone In The Universe · David Usher

    Morning Orbit

    ℗ 2001 EMI Music Canada

    Released on: 2001-01-01

    Associated Performer, Vocals: David Usher
    Associated Performer, Guitar, Bass, Producer: Mark Makoway
    Associated Performer, Drums: Paul Wilcox
    Studio Personnel, Mastering Engineer: Brian Gardner
    Associated Performer, Keyboards: Kevin Young
    Studio Personnel, Mixer: Dave Eringa
    Composer: David Usher

    Auto-generated by YouTube.

  • Earths Cousin Find Whispers The Possibility That We Are Not Alone


    And 'how much longer until a new discovery shouts it out?' asks the Science @ NASA video series. In July 2014, NASA announced the discovery of Kepler 452b, a planet slightly larger than Earth that resides in the habitable zone of its solar system. It is 6 billion+ years old, (older than Earth) allowing for plenty of time for life to develop. -- Read more about the discovery:

    Credit: NASA

  • We are not alone in the Universe | Where are the Aliens? | Voyager 1


    Not only that this film proves that we are not alone in the Universe. It becomes obvious that there are trillions of other intelligent civilizations in the Universe and perhaps one thousand in our galaxy-Milky Way. Calculation starts with large numbers, numbers of galaxies and stars in the Universe, and then by narrowing down those results using very strict conditions, each as a fraction of previous result we finally get to the final result-number of planets with intelligent life. In order to assure the strictest possible (and impartial) result my assumptions in each step are conservative (e g although it is possible that each of habitable planets eventually develop life-(100%), my estimate for the calculation is just 1 out of 20 (5%).
    Second part of my film starts with famous Fermi Paradox: If there are so many intelligent civilizations in the Universe why haven't we seen or met them. I tried to explain that using a few examples with Voyager 1 one of the fastest man-made objects which has been travelling for more than than 40 years at enormous speed.

  • Are We Alone In The Universe?


    Are We Alone In The Universe?
    Subscribe To Life's Biggest Questions:

    There is no shortage of life on earth. Everywhere you look, there are living things. They are both visible and invisible to the naked eye. But is it really possible that earth is the only place in the universe that has the right conditions to harbour life? Today, life’s biggest questions asks, are we alone in the universe?

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  • Are We Alone In The Universe?


    Craig discusses the Fermi Paradox & the Drake Equation with an astrobiologist while Matt goes on an expedition to find evidence of UFOs!

    Where are all the aliens? Are UFOs real? Do aliens exist?

    Special Thanks To:
    Dr. Clark Johnson

    Bill Benson

    Additional Crew:
    Kathryn Grover

    Seeing Isn't Believing Videos:
    James Randi vs The Supernatural -
    What Are The Limits Of Your Perception? -
    Are We Alone In The Universe? -
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  • Are we alone in the universe?


    Want to know the chances of us running into aliens?

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  • Are We Alone in the Universe?


    Are we alone in the universe? This question is as old as humankind itself.
    But the idea that we are alone is just as terrifying as the fact that someone else actually exists out there.


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  • Are We Alone in the Universe?


    This is a clip from an episode of Answers News that aired on July 12th, 2018.

    Humans Alone in Universe, Depressing Study Finds:

    No Aliens, but Scientists Find More Evidence for Life on a Saturn Moon:


    Aliens: Fact or Fiction? written by Dr. Danny R. Faulkner:

    Aliens on Earth:

    UFOs & ETs Pocket Guide - A biblical and cultural exploration of aliens written by Dr. Danny R. Faulkner:

  • Space News: Are we alone in the universe? Part 1


    Space is the Final Frontier and this week we’re talking about the burning question. Are we alone in the universe? The search for extra-terrestrial life has come a long way in the past few years, and here to talk more about it is our resident expert, Jono Weltman from the Foundation of Space Development

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  • Are we alone in the Universe? - Day 3/3


    June 11, 2020: 16.00-17.45 Italian time (17.00-18.45 Ukranian time) - Day 3/3

    III Italy-Ukraine Scientific Meeting - A virtual conference on the occasion of the Italian Research Day in the World organized by the Italian Embassy to Ukraine (Kiev), V.N.Karazin Kharkiv National University (Ukraine), and INAF-National Institute of Astrophysics (Italy).

    Chairperson: Elena Bannikova (Professor of Astronomy, V.N. Karazin Kharkiv National

    0:00:32 Vil Bakirov (Rector of V.N. Karazin Kharkiv National University): Waiting for the Big Contact: the need for exosociology

    0:14:19 Giuseppe Tanzella Nitti (Professor of Fundamental Theology, Pontifical University of the Holy Cross, Rome, and Vatican Observatory): Plurality of Worlds and Christian Faith

    0:36:51 Anatoliy Tshedrin (Professor of Philosophy and Political Science, Kharkiv State Academy of Culture): SETI Program in Modern and Postmodern Culture: Philosophical and Cultural Dimensions of the Contact Problem

    0:53:31 Stelio Montebugnoli (Emeritus Senior Engineer at INAF-IRA and INAF Special Advisor for SETI): SETI program for the search for extraterrestrial life

    1:09:02 Volodymyr Salenkov (Honorary doctor of the V.N. Karazin Kharkiv National University, Kharkiv): Kharkiv, the city of space

  • Alone In The Universe - Jeff Lynnes ELO


    Track 10 on Jeff Lynne's ELO

  • Hypothèse de la simulation : nouvelle conclusion pour notre futur ! | The Flares


    Si vous pensez que l’humanité atteindra un jour un stade technologique où elle sera capable de créer des simulations, alors il est très probable que ce soit déjà arrivé et nous vivons dans une des milliards de simulations créés par les humains du futur. Mais l'astrophysicien David Kipping propose une nouvelle approche pour calculer la probabilité que nous vivons dans la réalité physique ... avec une conclusion incroyable !

    Article de David Kiping :
    Article de Nick Bostrom :

    A travers cette série vidéo, notre but est de de confronter les théories scientifiques et sociologiques d’aujourd’hui, aux hypothèses du monde de demain afin de partager ensemble, le loisir d’imaginer le futur.

    Si vous avez aimé cette vidéo, merci de la partager. C'est un petit geste qui nous aide grandement ;) !

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    L’avenir est une nuit noire dans laquelle nous ne pouvons pas nous permettre d’avancer aveuglément. Nous cultivons chaque jour la volonté de vous raconter ce que le futur pourrait être.
    Nous sommes vos « fusées éclairantes ».
    Nous sommes The Flares …

  • The Science of Ad Astra - Alone in the Universe for a Loner


    The Science of Ad Astra - Alone in the Universe ?
    Audio Commentary by James Gray

    AD ASTRA - Directed by James Gray

    I'm focused here on Science but there are lot of thematics in Ad Astras Audio Commentary like Masculanity, Artistic Liberty, Genesis of the film etc...

    Extra Footage used:
    Mars Curiosity Descent:
    Action Cam Footage From October 2017 Spacewalk:
    Earthrise: The Story of the Photo that Changed the World | Short Film Showcase:
    Apollo 11 Earth Views and Crew Activities (1969):
    Apollo 11 Press Conference:

    Music used:
    Ad Astra - Max Richter - Cosmic Drone Gateway
    Ad Astra - Max Richter - The Rings of Saturn
    Ad Astra - Max Richter - A Trip to the Moon
    Ad Astra - Max Richter - Terra Incognita
    Ad Astra - Lorne Bafle - Briefing
    Ad Astra - Lorne Bafle - Opening
    Ignis: IV. - Jon Opstad

    0:00 Fox/Disney movie ?
    0:30 Science Fiction films
    2:20 Mother Earth
    3:48 Destination Moon
    4:39 the Future
    5:15 Moon war ?
    5:56 Plausible vision
    6:53 Mars exploration
    8:12 Astronauts psychology
    10:03 the perfect Astronaut, a loner ?
    12:05 Human in deep space, agony ?
    14:40 the Myth of the Hero
    15:40 Alone in the Universe for a Loner

    All Rights Reserved to their Own Owners.
    Edited by Steven Thomas, 2020.