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How the James Webb Space Telescope Will Unfold the Universe | John C. Mather | TED

The James Webb Space Telescope is a miracle of modern science and engineering. With a 21-foot, gold-coated mirror protected by a sunshield that’s the size of a tennis court, it’s the world’s most powerful telescope and humanity’s latest attempt to answer questions like: “Where did we come from?” and “Are we alone?” (It also needed…

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The James Webb Space Telescope is a miracle of modern science and engineering. With a 21-foot, gold-coated mirror protected by a sunshield that’s the size of a tennis court, it’s the world’s most powerful telescope and humanity’s latest attempt to answer questions like: “Where did we come from?” and “Are we alone?” (It also needed to be folded up like origami in order to launch into space.) Nobel Laureate John C. Mather, the leader of the team at NASA that built the Webb, explains how the telescope will observe the first galaxies to form in the early universe, peer behind clouds of cosmic dust and gas to reveal stars being born and uncover new details about places like Europa and Titan, which could harbor life. “We’re going to get a great surprise from this telescope,” Mather says.

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167 Comments

167 Comments

  1. Hidden in plain Sight

    April 25, 2022 at 9:58 pm

    All I seen then ( and all I’ve ever seen) was fake CGI pictures from NASA , no real images. Come on people, they’re robbing tax payers money to produce fake Images and sell you a dream about ‘space’ and ‘aliens’ , meanwhile innocent people are dying of starvation and lack of clean water on earth, when the governments could fix that problem right away with the money they make from Space agency’s that have robbed the tax payers.
    Im sorry to burst the bubble but people need to realise they’re being deceived about what they are living on, and I will preach this until the day I die.

  2. doctaugly d

    April 25, 2022 at 10:00 pm

    Anything they tell you is already 5 years behind they already know

  3. the fishstick

    April 25, 2022 at 10:18 pm

    SCIENCE!!!

  4. Alejotimeout

    April 25, 2022 at 10:33 pm

    Think about it. There where stars are borning, is the closest physical place to metaphysics.

  5. Mete Çetin

    April 25, 2022 at 10:34 pm

    👏👏👏

  6. Legend-Kel'Thuzad

    April 25, 2022 at 10:45 pm

    That’s so cool, I imagine they could detect magnetic field auroras on Goldilocks Zone planets due to the light the aurora emits. That’d be a great sign of life being possible.

    • beta_cygni

      April 25, 2022 at 11:36 pm

      Nowhere near enough resolution for that.

      Besides, the presence of a planet having a magnetic field doesn’t mean that there’s life.

  7. one one

    April 25, 2022 at 10:45 pm

    This man looks like that one actor.

  8. lllOlOlOOl lOllOOOlll

    April 25, 2022 at 10:49 pm

    Why do we stop there knowing the capabilities? Why not zoom in enough to see a miles worth of the planets?

    • beta_cygni

      April 25, 2022 at 11:34 pm

      Huh? What does that even mean?

    • lllOlOlOOl lOllOOOlll

      April 25, 2022 at 11:39 pm

      @beta_cygni we obviously get high res photos of the planet at scale but why not of the actual surface in detail…

    • beta_cygni

      April 25, 2022 at 11:50 pm

      @lllOlOlOOl lOllOOOlll JWST can’t do that for 2 reasons:

      1. JWST is an Infra-red detector (not a visible light scope). And IR wavelengths can be mostly absorbed by some atmospheric gasses (and so will look opague)

      2. Insufficient optical resolution.
      All optical systems have a limit as to the smallest object they can see. This limit is proportional to the size of the telescope. Seeing small details from that far is simply not possible.

      As an example, take the Hubble telescope. It has an optical resolution of about 0.1 arc seconds. That means that if it were to look at the moon, it couldn’t see anything smaller than 200 meters across (a football field on the moon would only look like a single pixel to Hubble) .

      And that is only 250,000 miles away. Planets are MUCH MUCH MUCH further away, so the minimum size of any object we can detect will be MUCH MUCH bigger.

  9. freddybentfender

    April 25, 2022 at 11:23 pm

    Steady stream of star tears from our star

  10. Oggydogg 313

    April 25, 2022 at 11:42 pm

    Thank you for this amazing device American tax payers.

  11. frank sigwart

    April 25, 2022 at 11:58 pm

    show something…anything.

  12. Aspry Writes

    April 25, 2022 at 11:58 pm

    Fine video, sir. 👍🏾👍🏾

  13. MyThoughts Not yours.

    April 26, 2022 at 12:04 am

    😍💖beautiful creation

  14. C

    April 26, 2022 at 12:06 am

    This man is a great teacher lol I could’ve listened to him for hours. Excited to see what comes from the research 👽 🖖🏿

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    April 26, 2022 at 12:06 am

    🐝 on 🌍

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  17. Whatever

    April 26, 2022 at 12:12 am

    Everytime I see wonderful talks like this from people who have dedicated their lives to science so that we can understand our world and universe it is thrilling. But it also saddens me because there is a large segment of our population who not only don’t believe him but think he is lying and instead rely upon a 2000 plus year old book authored by anonymous authors who believed the earth was flat… the center of the universe… and 6000 years old.

  18. andybaldman

    April 26, 2022 at 12:18 am

    How does any of this affect the life of an average person?

  19. Samuel Zev

    April 26, 2022 at 12:18 am

    I wonder, when they send the telescope to titan, did they catch a glimpse of Thanos?😅

  20. Jason lee

    April 26, 2022 at 12:23 am

    Elon Musk, James Web telescope… what more can you ask for…

  21. D Army

    April 26, 2022 at 12:38 am

    Would nuclear reactors not be better suits for space as it can act as a natural coolant environment 🤔

  22. Ligia Sommers

    April 26, 2022 at 12:42 am

    Amazing! Super interesting 🙏🏻✨

  23. Alsadek Alkhayer

    April 26, 2022 at 1:01 am

    Control one’s fate?

  24. kdsom

    April 26, 2022 at 1:10 am

    Earth is flat

  25. Kombosto

    April 26, 2022 at 1:16 am

    I love this dude!

  26. FUN SPOT

    April 26, 2022 at 8:36 am

    Person: wow! Humanity have achieved so much
    People in Nigeria: hey !do you extra bun, i am tired of eating soil.

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  27. Nobody

    April 26, 2022 at 8:55 am

    This is such a ripoff

  28. Philip Anthony Kenny

    April 26, 2022 at 9:14 am

  29. Jaxon Voss

    April 26, 2022 at 10:17 am

    God bless these people

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  30. Mente's Roll

    April 26, 2022 at 10:51 am

    the earth is flat.

  31. Mente's Roll

    April 26, 2022 at 10:51 am

    6:01 cgi, photoshop images…

  32. Mente's Roll

    April 26, 2022 at 10:51 am

    ilusions…

  33. Jon Sawer

    April 26, 2022 at 10:56 am

    Look at earth from outer space. The journeys will be arduous and long with so very much still remaining in the realms of the unknown. Scientific achievement and engineering advancements whilst progressive are still really at the very beginning, the generations that follow will unquestionably experience and witness so very much more.

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  35. Sudip Bishwakarma

    April 26, 2022 at 11:58 am

    This is so exciting. I felt like a child as I listened him speak. Absolutely loved the closing remarks: Astronomers travel with the speed of light and the speed of imagination.

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  37. CONTX Media

    April 26, 2022 at 3:06 pm

    James Webb is this generations Hubble. And we all know how legendary Hubble is.

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      April 26, 2022 at 3:14 pm

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    • beta_cygni

      April 26, 2022 at 3:23 pm

      While certainly important, JWST (like all telescopes) only observe in a limited band of wavelengths. JWST is primarily an Infra-red detector… which is very useful, but leaves out a significant portion of the EM spectrum.

      Hubble and James Web are two very different instruments, which are used for very different things. There are things that JWST can see that Hubble can’t. And there are things that Hubble can see that JWST can’t. In fact, Hubble remains the ONLY available instrument that can observe from near Infra-red, through visible light, into ultraviolet.

      The next space telescope has been in development since 2016. The Nancy Grace Roman Telescope will launch in 2027. NGRST will be a widefield version of hubble and will see more sky in just a few months than hubble was able to in its entire 30 years of life.

      And NGRST will have better spectrometers & coronagraphs than even JWST, by the way. And it will have extended near-IR capability, so it will be parked at L2 along with JWST.

    • whatsapp me 👉+⓵⓽⓻⓷⓸⓸⓺⓽⓵⓸⓻

      April 26, 2022 at 3:26 pm

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  38. Tarcísio Batista

    April 26, 2022 at 3:44 pm

    Epic, great time to be alive.

  39. Oregon Crow

    April 26, 2022 at 4:16 pm

    It won’t reveal anything more than what is already there. Rocks, deadly gases and light. It’s fun to pretend, I do it all the time. But there is nothing else out there, it’s just us here, plain and simple.

  40. ronkirk50

    April 26, 2022 at 4:52 pm

    The ‘Deep Field View’ taken with Hubble has to be one of the most awe inspiring images ever seen. All those galaxies! Just amazing.

    • The Dream Traveler

      April 26, 2022 at 5:58 pm

      And to think the James Webb telescope is 100x stronger than hubble is. We’re going to see some crazy detailed things

    • Lebron James Harden

      April 26, 2022 at 11:19 pm

      ThErEs No Life OuT tHeRE!

    • PhilosophersStonedTube

      April 26, 2022 at 11:33 pm

      Where’s the New pictures? WHY he reference old

  41. Aline Aquino

    April 26, 2022 at 5:47 pm

    ❤️

  42. jah0524

    April 26, 2022 at 5:47 pm

    Monica Lewinsky’s speech was FAR more inspiring!!

  43. andre wright

    April 26, 2022 at 5:51 pm

    absolutely excited about what and who (possibly) we will find. however, lately i have started to wonder if the jwst will be our debut on the universal stage OR have we found our “great filter”? what i mean by that is what if a sentient tech advanced race or civilization now knows that we know they are “there”? what does that mean for us who are no where near (what we describe as) “type I”?

    • skepticalgenious

      April 26, 2022 at 9:39 pm

      I have heard the theories of type 1 2 3 4 and 5 civilizations. It is an interesting thought. Harnessing the full power of our own planet or the sun would be awesome. If done safely. I do not know though

  44. Christopher Berry

    April 26, 2022 at 7:07 pm

    Hey aliens how’s it going, bet you enjoyed watching that thing unfold huh?

    Give us your tech

  45. Vivek Anand

    April 26, 2022 at 7:21 pm

    😘😘😘

  46. Philip Hemme

    April 26, 2022 at 7:23 pm

    Impressive!! But too bad John Mather is reading his text and it’s so obvious (way less engaging to get his message across). Maybe he could have read the official TED guide before to know how to do better 😜

  47. Global Communications

    April 26, 2022 at 8:33 pm

    Beautiful .. I can’t wait… Only this is interesting for me from astronomy … The Webb

  48. Zhiying Hai

    April 26, 2022 at 10:54 pm

    If this is gonna be infrared to the red shift again.

  49. Vi Mak

    April 26, 2022 at 11:44 pm

    Thank you all❤️

  50. Jose Venegas

    April 27, 2022 at 12:22 am

    Wow, incredible talk. Go Webb, futher than ever before

  51. Random

    April 27, 2022 at 1:30 pm

    Still some idiots believe universe was made in 7 days

  52. wade217

    April 27, 2022 at 1:36 pm

    let’s hope a european nation takes control of the project after the republicunts start changing the number of stars on our flag.

  53. Puncho Gee

    April 27, 2022 at 1:58 pm

    2040 here first

  54. MrWicked61671

    April 27, 2022 at 1:59 pm

    Science rules!

  55. BUXBE

    April 27, 2022 at 2:43 pm

    Incredible. Even seeing a bee from the Moon will not be enough at a universe level, but what an achievement.
    And we are definitely not alone. Not talking aliens and UFOs, it’s just logical. Whether we meet them, that’s different story. More importantly is, does it matter? Better clean up ourselves first instead of turning new planets into waste dumps, especially for money. How stupid humanity can be.

  56. ardekakka

    April 27, 2022 at 3:22 pm

    someone take this man to the crypt he lookin ancient and two times dead DAMN

  57. Sylvan Alarcon

    April 27, 2022 at 4:34 pm

    Biggest Fraud going. Waste of money .

  58. Mark Dowse

    April 27, 2022 at 4:41 pm

    When I was 6, my father had fled.

  59. Nick L

    April 27, 2022 at 4:43 pm

    This is doesn’t seem accurate/up to date. It’s already aligned and cooled last I knew.

  60. Mario Solis

    April 27, 2022 at 5:13 pm

    Who is here from MKBHD??

  61. Fernando Barrera Gorrochotegui

    April 27, 2022 at 5:52 pm

    Thank you.

  62. Anish 9310

    April 27, 2022 at 5:52 pm

    Amazing. To the point without wasting any time.

  63. Brian Tenneson

    April 27, 2022 at 6:11 pm

    Isn’t his use of present tense wrong, given that what we see is many light years away?

  64. April Marie

    April 27, 2022 at 6:27 pm

    I could listen to him for forever

  65. Daithi

    April 27, 2022 at 6:53 pm

    I’ll unfold your nan

  66. Satish Patri

    April 27, 2022 at 6:56 pm

    Much love and respect to all the JWST engineers

  67. ken adams

    April 27, 2022 at 8:35 pm

    The elements our bodies consist of were created by exploding Stars. Why aren’t we told stuff like this !? . Thanks Mister.

  68. Chris H

    April 27, 2022 at 8:48 pm

    Best update on James Webb yet

  69. nick gratton

    April 27, 2022 at 9:23 pm

    NASA will,never tell,us what they really find

  70. Daniel

    April 27, 2022 at 9:47 pm

    “Have arguments with your friends” ie Peer review is everything right about how the scientific community works and everything wrong with modern society where everyone just gets there information from Facebook and Twitter.

  71. Harikrishnan R

    April 27, 2022 at 10:12 pm

    And people still believe God created everything and fight for their religion.

  72. 001ste hall

    April 27, 2022 at 11:07 pm

    SO WHAT,,

  73. Paul Jack Vasilyev

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      April 28, 2022 at 12:44 am

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  74. E Alkhiyami

    April 28, 2022 at 12:45 am

    “When I was 6 my dad told me I’m made out of tiny cells filled with chromosomes that would control my fate, I thought that was amazing” honestly I have no idea what to say anymore

  75. Mehdi Baghbadran

    April 28, 2022 at 1:21 am

    This is the beginning of something big

  76. Beach Bum

    April 28, 2022 at 1:50 am

    The Universe is magical. In 20 years The JWST will have answered many unanswered questions, yet there will still be far more that we don’t know than there will be that we do know.

  77. Dominic Commisso

    April 28, 2022 at 3:21 am

    Well done! Amazing work by these scientists.

  78. Gearox Technology

    April 28, 2022 at 5:18 am

    Oh yeah baby!!! I was really waiting for this one!!!

  79. Gearox Technology

    April 28, 2022 at 5:23 am

    That thing is basically a time machine!!!

  80. Big August

    April 28, 2022 at 6:27 am

    10 billion dollars…this boondoggle cost more than a fucking super carrier…more than any third world country spends on food in a year…all for what

    • H. de Jong

      April 28, 2022 at 6:54 am

      All for a better understanding of the universe.

  81. Jack

    April 28, 2022 at 6:43 am

    The most important quest of man

  82. Realkillers 11

    April 28, 2022 at 7:10 am

    I’m a Star?

  83. Varrusian

    April 28, 2022 at 7:48 am

    i wasn’t aware that the universe was folded and needed to be unfolded.

  84. Domenico Bilotti

    April 28, 2022 at 7:53 am

    I love science

  85. Mohammed Alyami

    April 28, 2022 at 7:59 am

    Ok I have a question. Why are we assuming that life outside of earth requires liquid water, or a similar atmosphere as earth. I mean every living thing on earth is carbon based if i’m not mistaken, but why should the rules of life here on earth apply for all “life” across the universe? How could we exactly know what we’re looking for, the definition of life that we know of should only be confined for our planet…?

    • H. de Jong

      April 28, 2022 at 9:02 am

      We’re not assuming that at all. There’s an entire field of science (exobiology) investigation other ways life could have formed, and what kind of signature that would leave. One of the things they found is that other chemistries (i.e. not using carbon and oxygen) have big chemical disadvantages (more energy needed, fewer combinations of elements possible) that mean they can’t compete with ‘our’ chemistry.

  86. Vegard Eide

    April 28, 2022 at 9:48 am

    Thank you!

  87. Fede B

    April 28, 2022 at 12:37 pm

    Can’t wait!

  88. larry

    April 28, 2022 at 1:36 pm

    This guy is such a lousy spokesman for James Webb. I appreciate he was instrumental for building the dang thing but that’s about all he is good for.
    This is not a room full of children and he should treat it as such. Stars are not born, their mommy, Mother Nature, did not tell you that.

  89. Ali Eslami

    April 28, 2022 at 3:28 pm

    Alooo

  90. Ali Eslami

    April 28, 2022 at 3:33 pm

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    April 28, 2022 at 3:34 pm

    Khano kha by no me

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  93. Lugh Planck

    April 28, 2022 at 4:12 pm

    I can’t wait ><

  94. John F

    April 28, 2022 at 6:18 pm

    I was lucky enough to be able to work on this project for a few years and I will always be proud of the contribution I made to one of the most amazing science projects conducted by the human race, lol. I did most of the testing and quality control of the materials that were used to make the frame that supports the hexagon panels and the instrumentation. It is made from lightweight carbon fiber prepreg tape that was very tightly controlled during production and I made sure that everything was done at the highest level of quality for that specific prepreg material. I love being able to share this with my kids and show them how amazing our scientists are and how they can help us to understand the whole universe.

  95. Bill Kingston

    April 28, 2022 at 9:41 pm

    When I was 6 I was an idiot, trying to make up , 53 and a half now

  96. Major Angle

    April 28, 2022 at 11:13 pm

    can it make a cheeseburger?

  97. Jaz Kepler

    April 28, 2022 at 11:35 pm

    They dont talk about wars or competition…they want to discuss ideas and achievements..truly remarkable character.

  98. Chris Durgin

    April 29, 2022 at 12:23 am

    Unbelievable
    Seeing this is amazing

  99. Victor Vaca

    April 29, 2022 at 1:12 am

    THE ANTICIPATION IS WHAT THE TELESCOPE WILL SEE IS KILLING ME!

  100. MozartificeR

    April 29, 2022 at 1:29 am

    Stimpy

  101. MozartificeR

    April 29, 2022 at 1:37 am

    The bible says we are not alone.

  102. Richard Branam

    April 29, 2022 at 1:43 am

    Where would we be without telescopes?

  103. Rizz Syed

    April 29, 2022 at 3:33 am

    _Cosmic Legends!_

  104. Jahangir Chowdhury

    April 29, 2022 at 4:47 am

    I love watching YT videos about the universe. I’ve downloaded about 110GB of videos, which I watch every night.
    The JWST is gonna revolutionize astronomy just like Albert Einstein did with his Theory Of Special Relativity.
    We’re in for some awesome space pictures and videos. I can hardly wait.

    • beta_cygni

      April 29, 2022 at 3:13 pm

      Not saying that JWST won’t be important (I think it will be). But I would argue that it will be more impactful for astrophysics than for astronomy.

      I would argue that the Gaia Observatory has done more to revolutionize the field of astronomy, and may be the most important instrument for that (yes, even more important than Hubble or JWST).

  105. Fenil Kapadia

    April 29, 2022 at 4:59 am

    we build it and we launched it… man sound so easy and simple lol

  106. Donut Duck

    April 29, 2022 at 5:44 am

    Yes I am in!!

  107. Yorgos Chrysogenis

    April 29, 2022 at 7:13 am

    And it will grow in size and girth, and it will reach out and extend all the way up to the gates of the heavenly kingdom, blocking the sun from all, Hebrew and gentile, who stand below…

  108. bible dynasty

    April 29, 2022 at 7:22 am

    The galaxies further away do have beings on them but our world our galaxy is quarantined because we were the only planet that fell into sin and disobedience. But there are innumerable planets with beings out there created by God. These unfallen beings are witnessing the chaos going on , on this blue planet for almost 6000 years already.

  109. Raihan Islam

    April 29, 2022 at 7:53 am

    Hubble gonna be cry 🙂

  110. Ravi Gujju

    April 29, 2022 at 8:02 am

    Decode the spider web, we will find the life on our galaxy next to our solar system, the code hidden in the spider web, i believe we could achieve it amen

  111. Narendra Prasath

    April 29, 2022 at 10:39 am

    This guy is a noble laureate and still speaks clearly in english for us to understand. If I was him I’d be gone quantum mechanics in the eighth second.

    Respect humble, and funny that you use even bumblebee to scale than that of metric.

  112. Dream Lover

    April 29, 2022 at 10:43 am

    Really nice cgi and photohop is used. Great job

  113. Machu Picchu

    April 29, 2022 at 5:47 pm

    Thanks guys. You are the giants future generations will stand upon!!

  114. Stephen Price

    April 29, 2022 at 9:07 pm

    If it really does discover something, I’m sure they won’t tell the public. Honestly, unless you’re in their circle you will never know the whole truth.

    • H. de Jong

      April 30, 2022 at 7:36 am

      False. This project is far too public to hide anything.

  115. Conjugal Visitor

    April 30, 2022 at 2:22 am

    When you say “unfold”, when you mean their is no god, you lose credibility. You’re not “unfolding” anything (but maybe the telescope, itself). You’re exposing the lies of religion. Tell the truth. Tell the facts.

  116. Nathan A.

    April 30, 2022 at 2:29 am

    He’s extremely smart and I’ve seen multiple videos with him in them, but he doesn’t explain things as clearly as some other scientists do

  117. The Real JacobTv

    April 30, 2022 at 5:14 am

    We are the real aliens

  118. trancient

    April 30, 2022 at 7:41 am

    Some of the NASA vids detail the incredible engineering and numerous partners that contributed to Webbs development and deploy. Another huge moment for humanity wrapped in many many years of dedicated research and work. Great talk.

    • Luka Magnotta

      April 30, 2022 at 8:08 am

      Satan is deceiving you with cgi

    • beta_cygni

      April 30, 2022 at 6:22 pm

      @Luka Magnotta Lol, no. You’re the one who’s been deceived by not admitting to factual info.

  119. albert ansah

    April 30, 2022 at 11:10 am

    The existence of humanity came from the exploding galaxies by expansion of the universe and earth 🌍 leading to the the creation revolution of humanity.???

  120. albert ansah

    April 30, 2022 at 11:17 am

    How come space is so hot 🥵 from the Sun ☀️ and greater cooling needed to reflect images from this JWD instrument 🎻 checking for exponents with life properties in deeper understanding hoisting of humans ability to form on earth 🌎.???

  121. Manish Kumawat

    April 30, 2022 at 1:59 pm

    He was a cute little kid.

  122. Saturn

    April 30, 2022 at 7:05 pm

    I’m more interested in the observation of extraterrestrial planets and black hole jets. Looking forward to what they can discover.

  123. Moscow Perdew

    April 30, 2022 at 8:11 pm

    *_The Earth is flat!_*

    • H. de Jong

      May 1, 2022 at 5:42 am

      No.

  124. Mantaj Singh Dhillon

    May 1, 2022 at 12:08 am

    Lucky to be in this time

  125. Gullible, Greedy, Ignorant & Indifferent

    May 1, 2022 at 2:48 am

    Please and quickly, find that galactic message that says “vote democrat and save your earth”.

  126. NathanDaGreat :p

    May 1, 2022 at 4:15 am

    666th comment!!

  127. The Rogue of Space

    May 1, 2022 at 4:24 am

    Awesome presentation, thank you 🙏🏽

  128. xSIVELx

    May 1, 2022 at 5:17 am

    If it ever even starts. Still waiting for the first calibrated images not being hidden from the public.

    • H. de Jong

      May 1, 2022 at 5:41 am

      All calibration images will be published at the end of the commissioning process.

  129. Justin Franks

    May 1, 2022 at 8:52 am

    5:29 The picture on the right is fucking absolutely mindboggling!!! To ask my brain to even attempt comprehending the absurdly vast amount of stars, galaxies and overall “clusterfuck” that can be pondered via briefly looking over this satellite image immediately breaks my brain…

  130. Jimmy Magar

    May 1, 2022 at 9:05 pm

    Theres something out there that we dont know what but i’m pretty sure we will get a surprise 👀👽

  131. Emmanuel Wesseh

    May 1, 2022 at 9:56 pm

    God is great forever!!

  132. Aaron Rose

    May 2, 2022 at 1:02 am

    Something was there before the Big Bang…but how?

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