Επιστήμη και τεχνολογία

A Journey to the End of the Universe

Could humans ever travel to other galaxies within their lifetime? The immense scale of the Universe seems to prohibit such voyages, after all the nearest galaxy is so far away that it takes light itself - the fastest thing in the Universe - 2.5 million years to complete the trip. Remarkably, there is a trick that might allow humans to accomplish this feat - join us today as we step onboard the constantly accelerating spaceship!
Written and presented by Professor David Kipping.
You can now support our research program and the Cool Worlds Lab at Columbia University: www.coolworldslab.com/support
0:00 - Prologue
2:57 - A Journey to Alpha Centauri
11:27 - Returning from Distant Shores
21:12 - Onward to the End
Further reading and resources:
► Lee, J. & Cleaver, G., 2015, "The Relativistic Blackbody Spectrum in Inertial and Non-Inertial Reference Frames": arxiv.org/abs/1507.06663
► Yurtsever, U. & Wilkinson, S. 2015, "Limits and Signatures of Relativistic Flight": arxiv.org/abs/1503.05845v3
► Margalef-Bentabol, B., Margalef-Bentabol, J., Cepa, J., 2013, "Evolution of the Cosmological Horizons in a Concordance Universe": arxiv.org/abs/1302.1609
► Columbia University Department of Astronomy: www.astro.columbia.edu
► Cool Worlds Lab website: coolworlds.astro.columbia.edu
Music is largely by Chris Zabriskie (chriszabriskie.com/) and is licensed under a Creative Commons Attribution license (creativecommons.org/licenses/by/4.0/), in order of appearance;
► Cylinder Five (chriszabriskie.com/cylinders/)
► Music from Neptune Flux, "The Oceans Continue to Rise chriszabriskie.com/neptuneflux/
► Music from Neptune Flux, "We Were Never Meant to Live Here" chriszabriskie.com/neptuneflux/
► Cylinder Two (chriszabriskie.com/cylinders/)
► Cylinder Four (chriszabriskie.com/cylinders/)
► Cylinder Eight (chriszabriskie.com/cylinders/)
► "It's Always Darkest Before the Dawn" by Hill, licensed through SoundStripe.com
► Cylinder Two (chriszabriskie.com/cylinders/)
► "It's Always Darkest Before the Dawn" by Hill, licensed through SoundStripe.com
Video materials used:
► Intro/outro video by ESO/Mark Swinbank, Institute for Computational Cosmology, Durham University, "Flying through the MUSE view of the Hubble Ultra Deep Field": www.eso.org/public/usa/videos/eso1738d/
► Voyager 2 footage courtesy NASA JPL: www.jpl.nasa.gov/video/details.php?id=1564
► Nautilus X videos from f r a g o m a t i k: grgone.info/will/zLWUmnxtdKed1H0/b-nteo and grgone.info/will/lJp6sYiwXc-bpGQ/b-nteo
► Ship passing Moon & Mars taken from "Beer from Mars" by MoonMan Pictures: grgone.info/will/2bGTcZKNeNmeqHU/b-nteo
► "A Journey to Alpha Centauri" video by ESO./L. Calçada/Nick Risinger (skysurvey.org): www.eso.org/public/usa/videos/eso1241a/
► Relativistic travel through a lattice by Ute Kraus: www.spacetimetravel.org/bewegung/bewegung.html
► Earth time lapse footage taken onboard the International Space Station by NASA's Earth Science & Remote Sensing Unit
► Fly-through space footage from Space.com: grgone.info/will/0q2gkGaAm9aHyJ8/b-nteo
► "A Flight Through the Universe", by the Sloan Digital Sky Survey, Miguel Aragon & Alex Szalay (Johns Hopkins), Mark Subbarao (Adler Planetarium): www.sdss3.org/press/dr9.php
► Galaxy spinning animation by spacetelescope.org: grgone.info/will/us6hr3psf75qo4E/b-nteo
► Expanding universe animation by EposChronicles: grgone.info/will/ld6Gsn1uptxp2Jc/b-nteo
Films clips used:
► Agora (2009)
► Star Trek (1966 - 1969)
► Star Trek: The Motion Picture (1979)
► Interstellar (2014)
► The Expanse (2015 - present)
► 2001: A Space Odyssey (1968)
► The Martian (2015)
► Passengers (2016)
► Alien (1979)
► Flame over India (1959)
► Star Trek: First Contact (1996)
► Prometheus (2012)
► Alien: Covenant (2017)
► Star Trek: The Next Generation (1987 - 1994)
► Planet Earth (2006)
► Elysium (2013)
► Alien: Resurrection (1997)
► Avengers: Endgame (2019)
► What Dreams May Come (1998)
Special thanks to GRgoner Madd End for this fantastic artist's impression of the halo drive: www.bilder-upload.eu/bild-0bab30-1551614591.png.html. Thumbnail image by Hazan: wallhere.com/en/wallpaper/139635.
::Playlists For Channel::
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Cool Worlds Long Form Videos ► bit.ly/CoolWorldsEssays
Cool Worlds Research ► bit.ly/CoolWorldsResearch
Guest Videos ► bit.ly/CoolWorldsGuests
Q&A Videos ► bit.ly/CoolWorldsQA
Tabby's Star ► bit.ly/TabbysStar
Science of TV/Film ► bit.ly/ScienceMovies
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Cool Worlds Lab coolworlds.astro.columbia.edu
Twitter david_kipping
#EndOfTheUniverse #ConstantAcceleration #CoolWorlds #InterstellarTravel


  1. David Miles

    David Miles

    Πριν χρόνο

    Guys, I've made an album inspired by your work. Halo Drive concept is so cool and futuristic that I called my last EP Halo Drive. I think you, Mr. Kipping and your team are dancing sometimes, so enjoy! indive.bandcamp.com/album/halo-drive P.S. support with likes, guys, so Cool World team see it! Thanks!

    • Chris Baca

      Chris Baca

      Πριν 8 ημέρες

      ⅗rt eery gcs

    • because i am batman

      because i am batman

      Πριν 15 ημέρες

      @Cool Worlds plzz sir Work with this Channel too Here grgone.info/will/uM52kZGzmdSitH0/b-nteo

    • Joseph W

      Joseph W

      Πριν μήνα

      @nebrew centric Giptian You take the shot, then you have nothing to worry about from me ;)

    • Joseph W

      Joseph W

      Πριν μήνα

      @nebrew centric Giptian And the problem with yours is you are unqualified to tell me what's best for me. Especially with unsubstantiated medical bullshit and clowns like Gates telling us it will include untested RNA manipulating nanotect..along with god knows what else.

    • Joseph W

      Joseph W

      Πριν μήνα

      @nebrew centric Giptian For me it's as simple as this. You do (to yourself) what you think necessary, to keep yourself safe. Now, you have no worry about/for me!

  2. Bipin Adhikari

    Bipin Adhikari

    Πριν ώρα

    20:25 to 20:30 !!! Is there any relationship between Plate-Tectonics and Surface Water on the Earth?

  3. n2ecosystems


    Πριν 2 ώρες

    I think fast than light travel can be achieved using entanglement somehow once we have a better understanding of quantum mechanics- we just haven’t figured it out yet at least the general public hasn’t, the deep state has better technology they keep under wraps.

  4. Kev Sax

    Kev Sax

    Πριν 5 ώρες

    K play who

  5. John Diaz

    John Diaz

    Πριν 6 ώρες

    Your forgetting the multiverse, black holes go somewhere.

  6. A H

    A H

    Πριν 19 ώρες


  7. Dr. Z

    Dr. Z

    Πριν 20 ώρες

    Man U tell some awesome stories

  8. Brandy Wasay

    Brandy Wasay

    Πριν ημέρα

    that's exactly how this aquarium was created . You wouldn't want your pet fish to jump out of your aquarium, would you?

  9. Ziodic


    Πριν ημέρα

    ok so if we built a rocket faster than the rate of the universe expands(impossible)then whats on the other side.......if we past the rate its expanding....is it a fucking wall we just blow up

  10. DJ Hero

    DJ Hero

    Πριν ημέρα

    Now when you say "more stars than every grain of sand on every beach on earth".... Some beaches have like 500ft deep sand, so how far do you go with that? What about the ocean floor or deserts? Do you think there could be more stars than every piece of sand combined on earth no matter where it is?

  11. luisvega666


    Πριν ημέρα

    something or someone must have created it i

  12. luisvega666


    Πριν ημέρα

    what movie is that

  13. Daniel Baylis

    Daniel Baylis

    Πριν 2 ημέρες

    Why we should all just kill ourselves. Who gives a f*ck honestly. Right?

  14. The Peace & Love Movement

    The Peace & Love Movement

    Πριν 2 ημέρες

    I have been very motivated to start a GRgone channel to help people have a better quality of life using wisdom that I have accumulated from amazing masters like yourself and life experiences. Thank you for helping change my life and also keep up the light work. :)

  15. Steve May

    Steve May

    Πριν 2 ημέρες

    How many grains of sand are there on all the beaches in all the world?

  16. Daniel Ash

    Daniel Ash

    Πριν 2 ημέρες

    Hmm home sweet home.

  17. MasterDk78


    Πριν 2 ημέρες

    oh my god, I love this. Entropy will get us all, no doubt. Its mind blowing what your are telling us here. Thank you so much for being you

  18. Marxvin T.G.

    Marxvin T.G.

    Πριν 2 ημέρες

    Smoke some weed and watch this kind of videos you will be so immersed into it the feeling is something else,i cant explain what kind of feeling is it.(i stopped smoking)iam just saying.

  19. Marxvin T.G.

    Marxvin T.G.

    Πριν 2 ημέρες

    Iam so obsessed with travelling to another planets, galaxies,.....etc,etc.....

  20. Rfcdgaf


    Πριν 3 ημέρες

    Anyone know what image is on the desktop monitor in the background?

  21. Mikael Mellbris

    Mikael Mellbris

    Πριν 3 ημέρες

    Awesome vid! Thanks!

  22. VVindovvZ


    Πριν 3 ημέρες

    yet we can only see a beautiful never changing sky above us.. not even changing on July and December..

  23. bennycreemers


    Πριν 3 ημέρες

    beautiful stuff... endless void might be nice if youre claustrophobic... not so much if youre agoraphobic

  24. Ed Oro

    Ed Oro

    Πριν 3 ημέρες

    Then we should know that's there is no end to our solar system. delete that questions out of our life let's think about live in communicate together and not think about far away because there is no end of far away .spending a trillion dollar for no reason .for sure that is someone out there they have more technology than us. Today I learned something that's you have to take care of your family the family you born inside you grow you went to school to college to be more knowledge than ever spent your knowledge right here Earth it's our first and end of our life.. I created this example out of my mind. when you cut Apple from the tree feed people around you instead of grab that apple and throw it as far you can't in it will smash thousand piece that's no one can get even one piece of that the power you get spread that power around you . I really think this person he explained something amazing to all of us you are very amazing I really thank you .you put all this information together to help stupid human to understand there is no end to our solar system. NASA China Russia spending trillion trillion of dollar for no reason at all another example out of my mind... if I win inside the cave to grab a piece of gold and come out I'll go again because that piece it will help people around me but if I go and I can't see except dirt and too many planet there is no reason to go back a human is very dumm.... Your video it was amazing you are fabulous person God bless you

  25. Devyn Escatell

    Devyn Escatell

    Πριν 3 ημέρες

    That was the best GRgone recommendation I''ve ever received.

  26. Kiyoshi


    Πριν 3 ημέρες

    This is depressing

  27. Debra Jenkins

    Debra Jenkins

    Πριν 4 ημέρες

    If we can't do a "Star Gate" travel then we might as well forget it.

  28. Shota Toriumi

    Shota Toriumi

    Πριν 4 ημέρες

    Guys, I've made an album inspired by your work. Halo Drive concept is so cool and futuristic that I called my last EP Halo Drive. I think you, Mr. Kipping and your team are dancing sometimes, so enjoy! indive.bandcamp.com/album/halo-drive P.S. support with likes, guys, so Cool World team see it! Thanks!

  29. Kamran Butt

    Kamran Butt

    Πριν 4 ημέρες

    you can find about the expanding universe in the QURAN.

  30. Blank


    Πριν 4 ημέρες

    I had this nightmare (I guess I would call it since it was pretty terrifying, rather than a normal dream) where I was in a spaceship traveling so far that I was going past all the galaxies to the edge of the universe, and once I hit the edge of the universe, my perspective started to glitch out and all the lights in the spaceship turned off, my eyes and everything around me started to start glitching and it all started to fade away, then my view turned to black and then I jolted up from my bed. That was my take on that, it was quite terrifying, honestly.

  31. Harald Fossum

    Harald Fossum

    Πριν 4 ημέρες

    Good thingz.

  32. Paul Yoder

    Paul Yoder

    Πριν 4 ημέρες

    then you bring back parasites that you didnt detect from the planet you just visited... and brought it back to earth to kill us all

  33. gerard geert Dulieu

    gerard geert Dulieu

    Πριν 4 ημέρες

    god zal dat nooit toe laten

  34. sonofjay817


    Πριν 4 ημέρες

    Now, I feel more than ever, like Earth is the center of the universe, the apple of God's eye.

  35. Terfe Badada

    Terfe Badada

    Πριν 4 ημέρες

    It's amazing how you people Fool yourself

  36. Earn Your Immortality

    Earn Your Immortality

    Πριν 5 ημέρες

    Too bad outer space is a fantasy

  37. liddy paul

    liddy paul

    Πριν 5 ημέρες

    It’s big so there must be something out there,,,I love this irrational idea,,,,,i

  38. JC Denver

    JC Denver

    Πριν 5 ημέρες

    Human will destroy everything on earth within the next 100 years! Stupid human!

  39. Nicholas Varias

    Nicholas Varias

    Πριν 6 ημέρες

    All this junk must be collected and stored on the Moon, where it could be recycled. There are very valuable components, such as precious metals, which could be reused to recuperate some of the cost of the cleanup.

  40. HawkS


    Πριν 6 ημέρες

    man 2019 simpler times



    Πριν 6 ημέρες

    Why my head is spinning 🥺

  42. Don Richardson

    Don Richardson

    Πριν 6 ημέρες

    Thank you . 🙏🏼

  43. Loui Bradshaw

    Loui Bradshaw

    Πριν 6 ημέρες


  44. Matthew Onassis

    Matthew Onassis

    Πριν 6 ημέρες

    I got brain fart!

  45. izeth semovic

    izeth semovic

    Πριν 7 ημέρες

    Excuse me Sir, how did they receive letters lol

  46. KING


    Πριν 7 ημέρες

    This is my universe, all of you get out of here.

  47. Cronoviajero


    Πριν 7 ημέρες

    There is not such a thing as the "end" of the universe. Infinity has not an "end".

  48. labrador1229


    Πριν 7 ημέρες

    OMG, got to 9:33, to deep for me.........."stop the count"!

  49. Beau


    Πριν 7 ημέρες

    Humans can't even go from their house to work without killing our planet. I'd hate to see the fallout from humanity traversing just to the closest start. Let's work on saving ourselves from destruction before heading to the ends of universe

  50. John Henshaw

    John Henshaw

    Πριν 7 ημέρες

    reminds me of a SI FI book I once read, called tau zero.

  51. mdsabih


    Πριν 7 ημέρες

    Great video, thank you.

  52. Carlos Martínez

    Carlos Martínez

    Πριν 7 ημέρες

    Extremely knowledgeable, sir thank you for the lesson.👍

  53. D S

    D S

    Πριν 7 ημέρες

    do you want stop thinking about all this nightmare? then join the group EARTH IS FLAT.

  54. Rotel Dorel

    Rotel Dorel

    Πριν 7 ημέρες

    wat its dis its hope ? Meybe its all wet not ansewr wata fuck u talk abut ? I chend olso mec propagande beter den you wet efect dicital or copy fake app

  55. Archer


    Πριν 8 ημέρες

    All journeys are one-way.

  56. Thomas Callahan

    Thomas Callahan

    Πριν 8 ημέρες

    All based in fantasy and bad math.

  57. hof987rec ;gop'sep

    hof987rec ;gop'sep

    Πριν 8 ημέρες

    This concept needs to be made into a movie. The astronauts return to a barren earth...

  58. Thiago Molina

    Thiago Molina

    Πριν 8 ημέρες

    Thanks for the video, very enlightning. Please could you elaborate the question about the increase of mass when increasing velocity, closest to light speed? Why did you left this point out of your video? It would be a very interesting point of knowledge for everyone. One minor correction, on 3:20 the graph on bottom (y axxis) should read position instead of velocity. Thumbs up for your channel!! thank you very much.

  59. HereandnoW


    Πριν 8 ημέρες

    Earth is flat, I feel much safer when I believe in it

  60. Sherika Palmy

    Sherika Palmy

    Πριν 8 ημέρες

    Do u really think the universe might have an end? For me I definitely doubt that , it's a never ending cycle

  61. Sherika Palmy

    Sherika Palmy

    Πριν 8 ημέρες

    Won't it be easier if we just ostroproject there? if the soul is limitless might be easier to explore out of space in a dream state whilst the dreamer is attached to some sort of machine that makes the observer visualize everything the dreamer is witnessing out there

  62. EJ Young Music

    EJ Young Music

    Πριν 8 ημέρες

    These hypothetical theories scare the living shit out of me

  63. Aerik Sanderson

    Aerik Sanderson

    Πριν 8 ημέρες

    Wow very very awesome man

  64. Taz247


    Πριν 8 ημέρες

    I can’t watch your videos forever

  65. antirlop


    Πριν 8 ημέρες

    no1 explain this easy way. everyone know x=V.t formula. so if u use speed here V over lightspeed to reach x, u modify t here so this time differences comes from here. thank me later small brains:)

  66. Michal W

    Michal W

    Πριν 8 ημέρες

    Who the f... were that 3.4K of „people” who disliked this video? Is a mooron an adequate word for them?

    • HereandnoW


      Πριν 8 ημέρες

      Freedom of speech

  67. Julian Weikl

    Julian Weikl

    Πριν 8 ημέρες

    My thoughts during the video: What if someone travelled to earth, they knew that they couldnt go back to their home planet and this in mind they colonized earth.

  68. Big Dogo

    Big Dogo

    Πριν 9 ημέρες

    This was absolutely incredible and I’m so happy I smoked before watching it! Thank you 😊

  69. jayanth marlapati

    jayanth marlapati

    Πριν 9 ημέρες

    This is no less than a movie

  70. Selim Onat

    Selim Onat

    Πριν 9 ημέρες

    This is truly a tale for adults ❤️.

  71. Ranjith U

    Ranjith U

    Πριν 9 ημέρες

    Latest Carl Sagon!

  72. Ranjith U

    Ranjith U

    Πριν 9 ημέρες

    Very nice and enjoyable narration. Thank you.

  73. Shawn Boxill

    Shawn Boxill

    Πριν 9 ημέρες

    Shawn was here. Hello future people ! 23/11/2020

  74. Attila Vörös

    Attila Vörös

    Πριν 9 ημέρες

    watching this movie makes me think, why we spending our life with wars and killing each other when we coud do much awesome things.. like spacetravel. truly an exciting idea that is.. discovery is one of the greatest achievment of human race.

  75. Arth Alagao

    Arth Alagao

    Πριν 9 ημέρες

    Man that was petty intense, definitely my favorite video by far

  76. C.O.P. Civilian_On_Patrol

    C.O.P. Civilian_On_Patrol

    Πριν 9 ημέρες

    So, you can send letters, huh

  77. im on YouTube

    im on YouTube

    Πριν 9 ημέρες

    I watch these videos to go to sleep too

  78. Claude Hall

    Claude Hall

    Πριν 9 ημέρες

    By far best video on GRgone

  79. Romy Cruz

    Romy Cruz

    Πριν 10 ημέρες

    Beautiful vlog and presentation but it's mind boggling. My nose is bleeding. I need to call ElonMusk and have a brain-chip inplant ! so if you want to stay young (relative to earth) go to space for a while and return back to earth when elon's hyperloop is already completed so you won't experience the horrendous traffic while going around jeff bezo's Amazon cities.

  80. Kev


    Πριν 10 ημέρες

    I existed

  81. Miroslav Gligoric

    Miroslav Gligoric

    Πριν 10 ημέρες

    Interesting lie

  82. Sunaan S

    Sunaan S

    Πριν 10 ημέρες

    That would be one hell of a journey. Sign me up 😆

  83. Robert Raymond

    Robert Raymond

    Πριν 10 ημέρες

    So, the universe expands, but we ourselves do not? Shouldn't our bodies and the ship itself expand at the same rate? - Beyond the normal accumulation of fat as we approach middle age, of course.

  84. valter fritz

    valter fritz

    Πριν 10 ημέρες

    A fény sebesség lassabb mint a gravitációs hatás? A gravitációs erő gyorsabban hat mint a fénysebesség? A galaxis közepén lévő feketelyuk a fénysebességnél gyorsabban kell hogy uralja a csillagok mozgását? Mer ha igen akkor itt lesz valahol a megoldás az intergalaktikus utazásra.

  85. Saud Khan

    Saud Khan

    Πριν 10 ημέρες

    Islam is the true religion of God..Quran mension everything...

  86. Gaming PH

    Gaming PH

    Πριν 11 ημέρες

    And now you remember that you want be flash Untill you want this video you want to be a turtle

  87. ScientificEndevourOfTheMind


    Πριν 11 ημέρες

    Imagine being so long and far out and away that you and your ship is the only form of matter within your entire Hubble volume *gets scared, hides in the comments*

  88. JimmyJJ


    Πριν 11 ημέρες

    15:40 - 15:50 Very cheeky 🏳️‍🌈

  89. RoleA420


    Πριν 11 ημέρες

    Your amazing watched this 4 times already

  90. Meziechi Nwogu

    Meziechi Nwogu

    Πριν 11 ημέρες

    Sorry mate, but this is science fiction just like tony starks of Avengers having magical powers. The Human body will never never ever last for such a long journey. Even in the one million years, it wouldnt work. The Human body, technology limitation, and the fact that our creator has placed such restriction. Sorry mate



    Πριν 11 ημέρες

    I am very much glad to accoutred knowledge to the cosmic travel time.

  92. Shota Toriumi

    Shota Toriumi

    Πριν 11 ημέρες

    This concept needs to be made into a movie. The astronauts return to a barren earth...

  93. Earthling 22

    Earthling 22

    Πριν 12 ημέρες

    Be careful, when you say that everything is expanding away, which I believed at first, that our moon and Sun were moving away from us. Our universe is expanding with us.

  94. Earthling 22

    Earthling 22

    Πριν 12 ημέρες

    Regardless of all this, we are here alone, because we can't get along together. That's just who we are, thus, Fermi paradox. However, I wish that I would be here, to experience the Dragonfly feeling Titan for life!

  95. Hano Mano

    Hano Mano

    Πριν 12 ημέρες

    That was awesome

  96. TrekStar0101


    Πριν 12 ημέρες

    Great video! Thank you!

  97. LethiuxX


    Πριν 12 ημέρες

    If things accelerate so intensely, what happens if you collide with a small stone travelling the opposite direction? Also, does this mean that small rocks could be hitting our world at millions of miles per hour?

  98. Tim Bob

    Tim Bob

    Πριν 12 ημέρες

    The question everyone wants to know is.... how many grains of sand in the universe ?

  99. Marc


    Πριν 12 ημέρες

    What an awesome video, thank you for putting it all into layman's terms. For once in my life I understood everything and i'm 64 yo...lol.

  100. J W

    J W

    Πριν 12 ημέρες

    Brilliant and awesome. Nicely presented and pitched for the layman and the scientist. Spelling and/or grammar in the text needs attention-I am happy to help with respect! A truly wonderful video nevertheless.