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If the universe is only 14 billion years old, how can it be 92 billion light years wide?

  • If the universe is only 14 billion years old, how can it be 92 billion light years wide?

    9:47

    The size and age of the universe seem to not agree with one another. Astronomers have determined that the universe is nearly 14 billion years old and yet its diameter is 92 billion light years across. How can both of those numbers possibly be true? In this video, Fermilab’s Dr. Don Lincoln tells you how.

    For further information, see

  • How do we know the universe is 13.8 billion years old?

    9:06

    How can scientists possibly know the age of the universe? Well, through a variety of factors, including redshift, the CMBR and more.
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  • Misconceptions About the Universe

    5:46

    Can we see things travelling faster than light?
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    Thanks to Prof. Geraint Lewis for input on earlier drafts of this video.

    The expanding universe is a complicated place. During inflation the universe expanded faster than light, but that's something that actually happens all the time, it's happening right now. This doesn't violate Einstein's theory of relativity since nothing is moving through space faster than light, it's just that space itself is expanding such that far away objects are receding rapidly from each other. Common sense would dictate that objects moving away from us faster than light should be invisible, but they aren't. This is because light can travel from regions of space which are superluminal relative to us into regions that are subluminal. So our observable universe is bigger than our Hubble sphere - it's limited by the particle horizon, the distance light could travel to us since the beginning of time as we know it.

  • The Farthest Star Ever Seen is 9 Billion Light Years Away

    3:41

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  • The Star Thats Older Than The Universe

    5:10

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  • How Do We Know The Age Of The Universe?

    5:50

    You may have heard that the universe is close to 14 billion years old, but how in the world can anyone actually know this? In this video, I explain how we have managed to determine the age of the universe.

  • Universe Older Than 13.8 Billion Years

    6:22

    Mainstream scientists tell us the universe is only 13.8 billion years old. Learn why the universe could be older than 13.8 billion years old.

    #space #science

    Photographs from NASA


    Some scientists do admit the universe could be older but many still promote the idea the universe is only 13.8 billion years old. In 2016 I uploaded a video called Galaxies Move Faster Than Light I actually used the above website as a reference because some people think nothing can travel faster than light.

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  • How do we know the universe is 13.8 billion years old?

    49

    How do we know the universe is 13.8 billion years old?
    If The Universe Is 13.8 Billion Years Old, How Can We See 46 ...
    Jun 3, 2019

    So after 13.8 billion years, you'd expect to be able to see back almost 13.8 billion light years, subtracting only how long it took stars and galaxies to form after the Big Bang. The GOODS-N field, with galaxy GN-z11 highlighted: the presently most-distant galaxy ever discovered.

  • Why cant we see the entire universe?

    3:02

    In 2013, the European Space Agency's Planck space mission released the most accurate and detailed map ever map of the universe's oldest light. The map revealed that the universe is 13.8 billion years old. Planck calculated the age by studying the cosmic microwave background.

    The cosmic microwave background light is a traveler from far away and long ago

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  • What Really Happened 13.8 Billion Years Ago?

    57:18

    Did space and time spring into existence 13.8 billion years ago in a sudden violent event known as the big bang? In this Frontiers of physics lecture, Dr. Paul Steinhardt explores alternate theories about the evolution and structure of the universe.

    Although that has been the prevailing view for the last 50 years, there are good reasons to consider an alternative in which the big bang is replaced by a bounce that smoothly takes the universe from an earlier period of contraction to the current period of expansion.

    Perhaps there were many bounces in our past and there will be more in our future. This talk will discuss these two competing scenarios and the very different pictures they present of the evolution and structure of the universe.

  • The Great Debate or How Big is the Universe?

    26:04

    Simon Steel(Senior Director of Education and STEM programs) talks with Seth Shostak(Senior Astronomer) about the great debate in the 1920s that fundamentally changed our understanding about the size of the universe.

  • Brian Swimme: Journey of the Universe | Talks at Google

    51:49

    The discoveries of modern science tell a comprehensive epic story of the universe through fourteen billion years of evolution. Brian will tell this amazing story from the birth of the universe to the history of planet Earth to the stages of hominin evolution. While this account will certainly be in contention with older cultural narratives, it could ultimately lead to positive effects for future human evolution. Brian will point to some of the epic’s long term consequences for humanity as a whole.

    Brian Swimme earned his doctorate in the department of mathematics at the University of Oregon where he specialized in singularities in gravitational systems. He is professor of evolutionary philosophy at the California Institute of Integral Studies in San Francisco. His PBS film Journey of the Universe won an Emmy for best documentary in Northern California.

  • Exploring the Universe: Crash Course Big History #2

    14:37

    In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen and helium turned into stars, formed galaxies, created heavy elements, and eventually created planets.

    For more information, visit

  • How far is the edge of the universe?

    16:28

    Did you ever sit under the clear night sky and wonder “does it go on forever? The size of the universe has long been a question that has puzzled scientists, philosophers, and theologians, without a clear answer… well, until now. In this video, Fermilab’s Dr. Don Lincoln leads you through what modern science can say about the size of the universe.

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  • Universe is younger and expanding faster than previously thought

    4:18

    CBS News contributor and physicist Michio Kaku joins CBSN's Elaine Quijano to discuss a new study that says the universe is younger and expanding faster than previously thought.

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  • The Biggest Ideas in the Universe | Q&A 12 - Scale

    47:43

    The Biggest Ideas in the Universe is a series of videos where I talk informally about some of the fundamental concepts that help us understand our natural world. Exceedingly casual, not overly polished, and meant for absolutely everybody.

    This is the Q&A video for Idea #12, Scale. A handful of interesting questions about different kinds of elementary particles. Some known to exist, some completely hypothetical.

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    #science #physics #ideas #universe #learning #cosmology #philosophy #quantum #scaling

  • Why We Can Only See 0.0001% of the Entire Universe - The Unobservable Universe Explained

    4:56

    In this video, we will explore the observable universe and calculate the limits what we can see based on its expansion. How wide is the entire universe? How do we find the actual size if we can't see it? Let's explore the unobservable universe.

    ????If you enjoyed the video, remember to leave a like and subscribe to the channel for weekly astronomy content.

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    1. A Journey Through the Cosmos - Brian Cox and Jeff Forshaw


    2. The Astronomy Book:Big Ideas Simply Explained - DK


    3. A Brief History Of Time - Stephen Hawking


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    1. Blue Snowball Ice Microphone


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  • The Torch Podcast with Don Lincoln | The Great Courses

    25:51

    On this episode of The Torch, we examine the quest to discover The Theory of Everything—how everything in our universe is interconnected.

    Here to discuss the unifying theories of physics and more is Professor Don Lincoln, Ph.D., Senior Scientist at the Fermi National Accelerator Laboratory.

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  • Black Holes, Exploding Stars, and the Runaway Universe: A Life in Science

    1:34:58

    January 23, 2019
    Dr. Alex Filippenko (University of California, Berkeley) reviews his fascinating research career in astronomy, focusing on his work with black holes and with active galaxies and supernovae (exploding stars) -- and their role in helping us determine the ultimate fate of the universe. He also talks about some of the circumstances and people that influenced his work as a scientist, about the importance of education and outreach for the public support of science, and about his work to help ensure the future of Lick Observatory, the first permanently occupied mountain-top observatory in the world.

  • Rose Center Anniversary Isaac Asimov Debate: Is Earth Unique?

    1:53:26

    Join astrophysicist and Hayden Planetarium Director Neil deGrasse Tyson as he hosts and moderates a panel discussion dedicated to the perennial question Is Earth Unique? With what we now know about the stars in our galaxy and the planets that orbit them, we can begin to address this question with informed debate.

    Panelists are selected for their diverse expertise in geology, biology, chemistry, and physics and for the ways they have applied these fields to address the past, present, and future of planet Earth.

    This event is a special Asimov Panel Debate in celebration of the Rose Center's 10th Anniversary. For more information, visit

    2017 Isaac Asimov Memorial Debate: De-Extinction


    2016 Isaac Asimov Memorial Debate: Is the Universe a Simulation?


    2015 Isaac Asimov Memorial Debate: Water, Water


    2014 Isaac Asimov Memorial Debate: Selling Space


    2013 Isaac Asimov Memorial Debate: The Existence of Nothing


    2012 Isaac Asimov Memorial Debate: Faster Than the Speed of Light


    2011 Isaac Asimov Memorial Debate: The Theory of Everything


    Rose Center Anniversary Isaac Asimov Debate: Is Earth Unique?


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    © American Museum of Natural History, New York, NY

  • Have astronomers disproved the Big Bang?

    10:52

    The theory of the Big Bang describes the biggest event of all time– the origin of the universe itself. Scientists are confident that this theory accurately describes the life story of the universe over its 14 billion year history. However scientists like to check and recheck their work and they have found a discrepancy in two measurements of how fast the universe is expanding. This discrepancy could mean the need to add another twist in the story, or it could disappear with more study. In this video, Fermilab’s Dr. Don Lincoln helps us sort it all out.

    For more information visit

  • The Quasar from The Beginning of Time | STELLAR

    8:33

    Thank you to Draper and its We Hack the Moon initiative for supporting PBS Digital Studios.
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    Check out Physics Girl visit LIGO to see where they discovered Gravitational Waves


    Recently, the oldest quasar ever seen was discovered by the Gemini North telescope in Hawaii, the Magellan Telescopes at Las Campanas Observatory in Chile, as well as the Large Binocular Telescope in Arizona. In this first episode of the PBS DS mini-series, STELLAR, Matt travels to the top of Mauna Kea to visit the Gemini North telescope and see just how they found this ancient Quasar and it’s massive black hole.

    Stellar is a brand new miniseries done in collaboration with Dianna Cowern from @Physics Girl and Joe Hanson from @It's Okay To Be Smart Over six episodes we travel to some of the world's most important telescopes, go inside amazing space research centers, and talk with brilliant scientists. Next up, Dianna from Physics Girl visits LIGO observatory in Washington that detected the very first gravitational waves. Then Joe Hanson visits one of the telescopes that was part of world spanning Event Horizon Telescope.

    You'll be able to see future episodes on the Physics Girl and It’s Okay to be Smart YouTube channels, as well as the PBS Digital Studios Facebook page.

    Stellar is a part of the PBS Summer of Space. There will be lots of awesome space-related content all summer long on PBS. See what's happening at

    #SummerOfSpacePBS #astrophysics #space

    Special Thanks to Joy Pollard and Gemini Observatory for all their help making this episode.

    Check out the new Space Time Merch Store!


    Support Space Time on Patreon


    Hosted by Matt O'Dowd
    Written by: Sophia Chen, Matt O'Dowd, Andrew Kornhaber, Eric Brown
    Directed by: Eric Brown and Andrew Kornhaber
    Producer: Randa Eid
    Director of Photography: Eric Brouse
    Sound: Tobi Nova
    Production Assistant: Anna Bosketti
    Editing: Pavel Ezrohi
    Graphics: Murilo Lopes
    Assistant Editing: Daniel Sircar
    Produced By: Kornhaber Brown

  • The Higgs Boson Was Just the Start: Fermilab and the High Luminosity LHC

    11:08

    The CERN LHC is the world’s largest particle accelerator and is known mostly for its discovery of the Higgs Boson. However, the LHC will run for another two decades and will collect an enormous amount of data. Fermilab is heavily involved in the upgrades required to make both the accelerator and the Compact Muon Solenoid detector a physics-discovery powerhouse for the foreseeable future.

  • Why cant you go faster than light?

    8:37

    One of the most counterintuitive facts of our universe is that you can’t go faster than the speed of light. From this single observation arise all of the mind-bending behaviors of special relativity. But why is this so? In this in-depth video, Fermilab’s Dr. Don Lincoln explains the real reason that you can’t go faster than the speed of light. It will blow your mind.

  • Is Astronomy Ready for the James Webb Space Telescope?

    1:16:09

    NASA’s next astrophysics flagship mission, the James Webb Space Telescope (JWST), will soon be ready to explore the universe, but will scientists be ready to take full advantage of this incredibly powerful observatory? What will it take to be able to peer back in time to an era when the first stars and galaxies came into existence or peer with unprecedented vision at planets around stars other than our Sun? Preparations for the first observations with the telescope are underway, and astronomers are eagerly anticipating the opportunity to propose science programs that will lead to a host of new discoveries.

    In this lecture, Ken Sembach, director of the Space Telescope Science Institute, will highlight some of the exciting science to be conducted in JWST’s first year of observations. He will also provide a behind-the-scenes look at the complex science and flight operations activities needed to prepare the telescope and the astronomical community for an amazing journey across time and space.

  • Billions-old chunk from North America discovered in Australia

    1:03

    Rocks from opposite sides of the globe show that part of Australia was once attached to North America 1.7 billion years ago, new research says.

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  • WHAT LIES BEYOND THE OBSERVABLE UNIVERSE?

    11:00

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    You sometimes cannon help thinking how small our planet is in comparison to the magnitude of the universe. But people keep killing and polluting this little habitable oasis in harsh and forbidding space instead of joining their effort in studying science and bringing technologies of exploring new worlds to the next level.:)

    #UNIVERSE #BEYOND #Kosmo

  • PARALLEL UNIVERSES: If The Universe Is Infinite Then Its Guaranteed That Our Universe Will Repeat

    6:46

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  • The age of genetic wonder | Juan Enriquez | TEDxCERN

    17:32

    Gene editing tools make it possible for us to manipulate the code of life. If we slightly modify the DNA of an orange we can obtain a tangerine. The old biology was used to observe stuff, the new biology can make it, it can redesign species. But what happens when we do it with human DNA? What happens when we decide to program cells? Renowned TED speaker Juan Enriquez gives us an outlook on the future of humankind in the post DNA-editing era and he explains the impact of new life-sciences on politics, business, technology, and society. Juan Enriquez is a life scientist, author, and futurist. He is the co-author of the book “Evolving ourselves: How Unnatural Selection and Nonrandom Mutation Are Shaping Life on Earth”. He is also the managing director of Excel Venture Management, a life sciences VC firm. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at

  • Cosmic Voyages through Computer Simulation and Visualization

    56:14

    Using the known laws of physics and the immense capacities of high performance computers, renowned astrophysicist Mike Norman takes you on an unprecedented journey across space and time to witness the formation of galaxies and cosmic structure as well as the formation of one of the first stars to shine in the universe. Series: Atoms to X-Rays [2/2002] [Science] [Show ID: 5936]

  • Why is our observable universe so big?? Expansion of Universe

    4:45

    The diameter of our observable universe is 93 billion light years, this is much bigger than the age of our universe, which is 13.8 billion years. The reason for this is explained in Hindi in this video that how expansion of universe is responsible for such a big observable universe.

  • 1MD - Cosmology - The universe is 93 billion light years wide

    1:11

    It doesn't take more than a minute to debunk a bad claim.

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  • Is the Earth Really Only 6000 Years Old? - Your Questions, Honest Answers

    2:10

    Hear Pat Robertson tackle the tough questions on today’s “Your Questions, Honest Answers”.

    Pat, I learned in church that the time of creation was 6,000 years ago. How does that work, compared to science saying dinosaurs are thousands or millions of years old?

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  • How do we know the universe is 14 billion years old?

    47

    How do we know the universe is 14 billion years old?
    13.7 billion years old - HubbleSite - Reference Desk - FAQs
    Jun 3, 2019

    Knowing the current speeds and distances to galaxies, coupled with the rate at which the universe is accelerating, allows us to calculate how long it took for them to reach their current locations. The answer is about 14 billion years. The second method involves measuring the ages of the oldest star clusters.

  • Our Universe is 90 Billion Light Years across Brian Cox The Horizon Problem

    1:01

    ATHEIST FAITH STATEMENT ABOUT THE BEGINNING OF THE UNIVERSE IS I don't know.


    That is where YOUR FAITH COMES IN, as an Atheist. Today in 2020, the overwhelming scientific evidence we have is that the Universe Began 13.6 Billion years ago, in the Big Bang. Sure we do not know what came before 10 to the minus 37 seconds after the Big Bang--but that does not negate the fact that the evidence shows it began. In fact, before the Big Bang theory, the accepted cosmological model of our universe was the Steady State Theory. The Universe is eternal. Fact is, the scientific community would boast, “you Christians say God is eternal, well we say the Universe and Matter are eternal, and the Bible is wrong from the first sentence. But starting in:
    1) 1905 with Einstein's Equations of Relativity and their implication that the universe is expanding.
    2) 1919 astronomer Arthur Eddington, observationally confirmed the Theory of Relativity in 1919
    3) 1924, Russian mathematician and physicist Alexander Friedmann, realized that the universe, according to the Theory of Relativity, could be in expansion, contraction or oscillating between both.
    4) 1929 Edwin Hubble--noticed the red shift of galaxies through his telescope--which again suggested an expanding universe.
    5) 1927 and 1931 Georges Lemaître--a Belgium Priest physicist and cosmologist combined the two and suggested a beginning to the universe. Lemaitre, made his prediction in 1927, but was ignored until 1931 when his paper was published in English. (Now take three guesses why a Catholic Scientist was ignored, and the first two don’t count). He is now considered the Father of the Big Bang theory.
    6) 1948 Ralph A. Alpher, and George Antonovich Gamow—postulated that if there was a big bang, there would be an after glow called the Microwave Background Radiation
    7) 1948 Sir Fred Hoyle an English Astronomer, along with Thomas gold, and Hermann Bondi began to argue for the universe as being in a steady state and formulated their Steady State Theory
    8) 1949 Sir Fred Hoyle, coined the term Big Bang on BBC radio's Third Programme broadcast on 28 March 1949, as a term of derision.
    9) 1965 Arno Penzias and Robert Wilson accidentally found the Microwave Background Radiation.
    10) 1978 Robert Jastrow (an agnostic) astronomer wrote the book called God and the astronomers, explaining the science, and his colleagues all around disgust at the Big Bang Theory. According to their apparent bias, they were rooting for certain science outcomes, not following it.
    11) 1993 The Steady State Theory hung in there still, until 1993 with the COBE satellite findings, and actually mapping the Microwave Background Radiation. I was a young man at the time, and watched as TED COPPEL (a secular news person) on a program called Niteline, put GENESIS 1:1 one the TV at the announcement. In the Beginning God created the Heavens and the Earth. Turns out the Bible was right from the first sentence.
    12) 2003 The WMAP satellite confirmed it again to a greater degree
    13) 2003 The Borde–Guth–Vilenkin theorem, or the BGV theorem, is a theorem in physical cosmology which deduces that any universe that has, on average, been expanding throughout its history cannot be infinite in the past but must have a past spacetime boundary.
    14) 2018 the PLANK CMB probe confirmed it again to a greater degree.
    This is all science (not an argument from ignorance) and even from the beginning of this journey, Albert Einstein fudged his equations and gave them a cosmological constant that would allow for a Static Universe--WHY because an expanding universe implies a beginning--and it sounds to much like Bible. At each step of the way the Scientific establishment has been kicking and screaming into the Big Bang Theory. Dr. Fred Hoyle, the champion of the Steady State Theory, is the one who coined the phrase Big Bang in 1949, as a term of derision. And technically it took form 1905 to 1993 for the Big Bang Theory to be considered settled science, and it was, again reconfirmed in 2018 to a greater degree.
    Now, This is the evidence we have, yet even you do NOT want to entertain the thought that the Universe had a beginning. In fact, you insist we do not know. At this point, it takes more FAITH ON YOUR PART TO BELIEVE THAT. The entire weight of evidence is that at a point in the past 13.6 Billion years ago, all space, time, and matter came into being. Now the laws of logic dictate, that if we have a beginning, we must have a beginner. Otherwise you are left with the unscientific belief that NOTHING PRODUCED EVERYTHING. Based on the physics we know, this is impossible. This is the science we have, and it is on my side. THANK GOD.

  • Millions of Lightyears

    36

    Timelapse of starry sky during trek through Andorra.

  • A History of Finding the Universes Age

    13:10

    Throughout history, people have attempted to find the universe's age. How did they do it and were they successful?

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  • An Universe Femto-meter to Billion light year.

    3:10

    An Universe Femto-meter to Billion light year.

    A good creation of designer.
    Declaimer :- This video is not my creation, credit goes to its original owner . i will not be claim for any revenue or profit. It is sharing only for education purpose.
    #Galaxy #Universe #femto_meter #Billion_light_yeal

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  • Subatomic Stories: The amazing neutrino

    11:19

    Of all of the inhabitants of the subatomic realm, it is said that neutrinos have surprised researchers more than the rest. In episode 4 of Subatomic Stories, Fermilab’s Dr. Don Lincoln both introduces you to these perplexing fundamental particles, and answers some fascinating viewers’ questions.

    Neutrinos: Nature’s Ghosts


    Neutrinos: Nature’s Identity Thieves


    Sterile Neutrinos and Seesaws


    Leptogenesis


    How do you make a neutrino beam?


    How do you detect a neutrino?


    Why is the weak force weak?

     
    The weak nuclear force: The quantum chameleon

     
    The weak nuclear force: Through the looking glass


    DUNE Experiment


    Fermilab physics 101:


    Fermilab home page:

  • How Old is the Universe?

    1:44

    Prof. Raymond Tallis presents two conflicting views on one of the most difficult questions to answer...

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    #GreshamLectures #Philosophy #Time #Astronomy #Science #BigBang #Universe

  • GN-Z11 THIS GALAXY IS 32 BILLION LIGHT YEARS AWAY

    54

    the photograph taken by the hubble telescope is 13.5 billion years old.

  • Fast Journey from Quarks to the Universe Edge

    3:28

    The Big Bang, the birth of the universe, was a singular event. All of the matter of the universe was concentrated at a single point, with temperatures so high that even the familiar protons and neutrons of atoms did not yet exist, but rather were replaced by a swirling maelstrom of energy, matter and antimatter. Exotic quarks and leptons flickered briefly into existence, before merging back into the energy sea.

    The casual student of science will appreciate the careful distinction between what is known (quarks, leptons and antimatter), what is suspected (Higgs bosons, neutrino oscillations and the reason why the universe has so little antimatter) and what is merely dreamed (supersymmetry, superstrings and extra dimensions).

    Roughly 13.75 billion years ago, our universe came into existence. Very shortly thereafter, the primordial light started shooting across the cosmos and spreading throughout the early universe. At this juncture, the universe itself was also expanding. The inflation of the universe slowed after the first initial burst, but since then, the rate of expansion has been steadily increasing due to the influence of dark energy.

    Essentially, since its inception, the cosmos has been growing at an ever increasing rate. Cosmologists estimate that the oldest photons that we can observe have traveled a distance of 45-47 billion light-years since the big bang. That means that our observable universe is some 93 billion light-years wide (give or take a few light years). These 93 some-odd billion light-years contain all of the quarks, quasars, stars, planets, nebulae, black holes…and everything else that we could possibly observe.

    However, the observable universe only contains the light that has had time to reach us. A lot more universe exists beyond what we are able to observe.

    According to the theory of cosmic inflation, the entire universe’s size is at least 10^23 times larger than the size of the observable universe.

    Despite its strangeness, this first idea is one of the easiest to digest. Astronomers think space outside of the observable universe might be an infinite expanse of what we see in the cosmos around us, distributed pretty much the same as it is in the observable universe. This seems logical. After all, it doesn’t make sense that one section of the universe would be different than what we see around us. And honestly, who can envision a universe that has an end….a huge brick wall lurking at its edge?

    So, in some ways, infinity makes sense. But “infinity” means that, beyond the observable universe, you won’t just find more planets and stars and other forms of material…you will eventually find every possible thing. Every. Possible. Thing.

    That means that, if this holds true and we follow it to its logical conclusion, somewhere out there, there is another person who is identical to you in every possible way. And there is also a you who is only *slightly* different from you in every possible way. They may be reading this article right now; the only difference is that they just picked their nose while you didn’t (or did you?). This notion seems inconceivable. But then, infinity is rather inconceivable.

  • How long ago was the Big Bang?

    1:09

    Dr Stephen Curran answers.

  • So here’s the net result for a 13.8 billion year-old Universe

    10:28

    Because the energy density at every point in history determines the expansion history of the Universe, and radiation, matter and the energy intrinsic to space itself evolve differently from one another! So here’s the net result for a 13.8 billion year-old Universe
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    If the Universe was filled only with radiation at all times, the objects whose light had finally reached us after traveling for 13.8 billion years would now be 27.6 billion light years away from us.

  • What if a SUPERNOVA Hit You?

    11:36

    THIS IS THE NEW CHANNEL -- All of my work will now be here, so please subscribe!

    Join [THE FACILITY] right now for members-only livestreams, behind-the-scenes posts, and office hours with me:

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  • Birth and Death of Stars: Space is Deep! Part 1

    5:02

    In this video Nicholas Mee discusses the size of the cosmos. The distance to the Sun is about 93 million miles. It takes light just over eight minutes to reach us from the Sun. In a year light travels about six trillion miles. The nearest stars are over four times this distance. We live about 30,000 light years from the centre of our galaxy, and it is 2.3 million light years to the nearest other large galaxy - the Andromeda Galaxy. We live in an expanding universe that emerged from the Big Bang 13.8 billion years ago. The soundtrack is by Pete Gallagher.

    You can watch Space is Deep Part 2 here:

  • Could You Spend a Day on Earth 3 Billion Years Ago?

    3:02

    Around 3 billion years ago, Earth may have been covered in water – a proverbial waterworld – without any continents separating the oceans.

    That's according to a new study published Tuesday in the peer-reviewed scientific journal Nature Geoscience by a pair of researchers from the University of Colorado-Boulder and Iowa State University. They uncovered an ancient piece of marine sediment in the Western Australian outback that may have some answers for the evolution of life on Earth.

    Read More:

    Credits: NASA/ JPL

    Music: Scott Buckley –

  • GUTs and TOEs

    8:01

    Albert Einstein said that what he wanted to know was “God’s thoughts,” which is a metaphor for the ultimate and most basic rules of the universe.  Once known, all other phenomena would then be a consequence of these simple rules.  While modern science is far from that goal, we have some thoughts on how this inquiry might unfold.  In this video, Fermilab’s Dr. Don Lincoln tells what we know about GUTs (grand unified theories) and TOEs (theories of everything).

  • the REAL age of the UNIVERSE

    48:28

    .

  • Introduction to Quarks and the Cosmos

    6:08

    The world has paused, giving us a great opportunity to learn more about science. The Fermilab YouTube channel is launching a special video series called “Subatomic Stories,” hosted by Dr. Don Lincoln. In this series, you will learn a little bit about both the exciting subatomic world and the entire cosmos - and see how the two are inextricably linked. Each episode will focus on a specific topic, but the series will tell a much broader story.

    Fermilab physics 101:


    Fermilab home page:


    Extended Standard Model video:

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