Black Holes: Seeing the Unseeable

A century after Einstein's mathematics suggested the possibility of black holes, the Event Horizon Telescope (EHT) is finally observing them. The project's latest achievement is the first image of the supermassive black hole in the center of our Milky Way galaxy. Join Brian Greene and the EHT's Founding Director Shep Doeleman to explore these stunning breakthroughs that are taking us ever closer to seeing the unseeable.
This program is part of the Big Ideas series, supported by the John Templeton Foundation.
Participant: Shep Doeleman
Moderator: Brian Greene
Share your thoughts on this program through a short survey:
survey.alchemer.com/s3/690681...
00:00 - Introduction
05:14 - Participant Introduction
06:12 - The first image of a black hole
08:18 - Where are the telescopes located?
14:58 - How do get the image of a black hole?
18:08 - Einstein and black holes
23:09 - Karl Schwarzschild and his black hole equation
29:26 - Andrea Ghez and Reinhard Genzel's won the Nobel Prize for black holes
35:42 - Testing Einstein at the boundry
39:40 - M87 and Srg A black holes comparison
45:25 - Will there be videos of Black holes?
47:33 -Why do we see super massive black holes at the center of galaxies?
51:33 - Where is imaging black holes going from here?
56:20 - The sharpest image ever made in the history of astronomy
Official Site: www.worldsciencefestival.com/
Twitter: / worldscifest
Facebook: / worldsciencefestival
Instagram: / worldscifest
#briangreene #blackhole #eventhorizontelescope #einstein #science #suppermassiveblackhole

[@garydecad6233]

The world science festival with Brian Greene is such an amazing gift

[@benyaeast4741]

Honestly we need more science and scientists to be more on media rather than celebrities! We can just learn so much from watching these videos

[@ugoeze7360]

But then wouldn’t said scientists in the media become celebrities themselves? 🤔

[@benyaeast4741]

@@ugoeze7360 yes which is a better version of superficial celebrities like island boys lol

[@bsadewitz]

This is what you're asking for. Most people don't prefer this to what's on television networks. About half of the adult population in the US cannot read and comprehend a book written for 8th-graders.

[@xanderda6250]

Y Oooooo h

[@bran_rx]

I agree, but it seems most people want to watch senseless tik tok videos instead

[@kayingthao5072]

The genius of Mr. Green is that he has a wonderful knack for explaining science in a way that the rest of us can understand or at least want to try to understand. He ask simple relevant questions.

[@nogod7184]

All science aside, this is a really serious interview. Decent, patient, knowledgeable, humble, understanding; unlike interviews we all see on TV with news anchors, where they cut off, brush aside and talk over interviewees. No loud voices, no big languages, no show offs. Obviously, education, especially high education, makes a different class of people.

[@liamhoward2208]

What class is that?

[@nogod7184]

@@liamhoward2208 If you have to ask then you don't belong to that class.

[@liamhoward2208]

@@nogod7184….and another one ☝️

[@BojanPetrovicvft]

A class that is above and beyond regular tv anchors who doesn't have expertise and width

[@24x7teja]

These kind of cosmological discussions are absolutely delightful to watch! Thank you Dr. Greene, this channel is one of my best and most favorite subscriptions on YT, and this (I am sure) is the case for many others.

[@artdonovandesign]

Dr. Green is great. A wonderful science communicator for many years.

[@24x7teja]

@@artdonovandesign Absolutely 💯

[@teashea1]

The production values are so excellent ------- So many sites should use this as their standard.

[@onlyloveisreal527]

Yes it is so excellent 👍

[@sanj1982]

I was in grade 2, when I distinctly remembered reading a science book about the wonders of the universe, one being a black hole. At that time it was still very theoretical. Im 40 now, and through the years the theoretical turned more into a reality. But when they released these pictures for the first time, I was absolutely in shock. Something I knew for my earlier life as almost science fiction actually exists in full picture thanks to the brilliant work of this team. I think this may be the science achievement of the decade.

[@andreaoricci2422]

We are extremely thankful to you Prof. Greene and all the encredible minds you host in World Science Festival. Please keep advancing our understanding of matters and please never stop. Thank you.

[@whirledpeas3477]

FYI he doesn't read the comments 😅

[@andreaoricci2422]

@@whirledpeas3477 He has mentioned that he actually does.

[@bujodrag]

​It is time for Shep Doeleman to, like Andrea Ghez, win a Nobel prize. Also, they are both, like Brian, fun to listen

[@chriswhitt6618]

I find it just incredible what the scientists and engineers can achieve. We progress to the stars.

[@jballenger9240]

To the stars and beyond…

[@stevewhitt9109]

I am Steve Whitt, Iva, SC USA. I admire Brian Greene

[@jimc.goodfellas226]

No relation?

[@davebenchoff6802]

@@jballenger9240 iiooooooooio

[@davebenchoff6802]

@@jballenger9240 ioooooooiioio

[@anonymous62810]

Beautiful conversation. The Netflix documentary on Shep Doeleman is worth a watch as well!

[@MichaelTadashi]

One hour. No nonsense. Even though we have more or less known a thing or two about the images by now, this is still exciting to watch.

[@alisaiterkan]

I know this video is about the incredible achievement of seeing the unseeable but I have to do a shout out for Brian Green to be the best interviewer. Respectful, knowledgeable, patient, and inquisitive, he has a set a real high bar in terms of leading such discussions.

[@vickyprabhat]

Can't emphasize enough, how good this conversation is. Hope instead of building missiles and nuclear bombs, we channel all our money and energy to this scientific discoveries, inventions and their tools.

[@spamlogs2701]

Hah! Quit dreaming we would need to hve world peace first

[@kundakaps]

@@spamlogs2701 World peace? Who's fighting?

[@ptolemythefirst4621]

@@kundakaps my imagination

[@ltee1233]

I mean figuring out how black holes work or what there made of etc is currently less important than making sure Russia and china dont bomb us. But hopefully one day

[@IAMMASONDAVIDSONGOBI]

I love our beautiful universe... Incredibly powerful beauty...

[@APNambo]

I can't believe I sat through an hour interview about a blurry blackhole picture, and enjoyed every moment of it.

[@6cm35]

I find it just liberating how clear, understandable and yet incredibly entertaining you and your guests present your knowledge about everything that has to do with physics. It's so refreshing for my heart and soul to get all this professional content in times with all the flat earthers, lateral thinkers and those who talk about crushing the system. Thank you Brian and your whole Team for doing this great stuff to humanity!

[@jwvandegronden]

Other than the lateral thinkers (I think I'm one but maybe I can ask you to shed a light first on what you understand them to be?) I wholeheartedly agree with you!! It indeed is amazing and gratifying!

[@mehridin]

lateral thinkers don't fit into your sequence. lateral thinkers are important to science and technology and problem solving/progress in general

[@jwvandegronden]

@@mehridin Absolutely. Although at times I have difficulty explaining my thought process to the majority of linear thinkers (not derogatorily used here) and I notice that it is conversely true too, they have difficulty either understanding or transferring their information to me. My fuzzy logic is difficult to translate, and most of lateral thinkers and visual thinkers have their own version so there is hardly any consistent way to learn or translate. Rough ride, but exactly as you state, important for our species and its progress as we cross fields, cross pollinate ideas and build new routes to new areas of any of the topics we set our mind to. Occupational hazard of being a lateral/visual thinker.

[@DivergentDroid]

You cannot see something that was created my mans imagination that you then reified into existence in your mind that is supposed to exist in a 2nd law of thermodynamics violation! - All of this is LIES to Control Your Mind!

[@marcuspedro6969]

Ur truly brainwashed with ur spinning flying monkey ball n curved water theories

[@solotrotrotro2530]

Mr. Green and NDT are among the best educators of EUA.

[@whitepanther785]

This kind of video editing looks so good in VR 😭 Thank you World Science Festival.

[@TheMorpheuuus]

What an insightful discussion ! impressed by the humility of the guest and sharpness of Brian's questions 👍

[@shreyasbabji124]

Yes! Being a physicist himself, he sure does know right questions to ask. 👍 This is an amazing video! 😊

[@siamzam]

Amazing! Keep up the great work Shep! And what can I say about Brian, just a pleasure to watch videos moderated by you! You guys are the unsung superheroes of our time!

[@ntandomalele9460]

Inspired and absolutely educated by this, thank you 💯💯💯

[@RT-xx9tx]

This is one of, if not the best, lecture WSF have done to date. And that is saying something! Awesome!

[@lumbiniashutoshtambat5871]

Happy world science festival!

[@johnnynitetrain32379]

I love finding new Brian Greene videos that I’ve never seen!! I check every few weeks…and boom! Black holes. Astrum, SEA, John Michael Godier, Event Horizon and V101 are my other faves.

[@paulc96]

**** Hi Prof. Greene,. I hope you are keeping well. Looking forward to this WSF event.

[@whirledpeas3477]

He doesn't read the comments 😂

[@elizabethslack3612]

Tears were streaming down my face as I vicariously experienced what the team first saw. Thank you!

[@dawnblankfield387]

I am totally entranced with these lectures. Thank you.

[@MrVikingsandra]

Oh what a gift this interview was, Brian! I enjoyed it very much, I like how clear the explanations were. To the point, brilliant stuff! 👏

[@teashea1]

A very smooth and warm interrelation between these two brilliant guys.

[@myopenmind527]

Some day I’ll attend this in person.

[@damslifevlog5031]

Thank you Brian and the team. ❤️

[@manutara2007]

WOW, I just dont get tired watching videos from this channel...

[@haydencannon1103]

absolutely stunning, as always.

[@neilb4me7]

Who doesn’t want a black hole video? ;-) Home from work, with my bowl of ice cream. Every night I pray WSF releases a video on black holes…got my wish lol

[@urieowrjdf]

Fantastic interview! Great questions. Great guest. Great topic. Thank you!

[@Michael-pe5gh]

Such a great discussion, setting the bar - Thanks Professor Greene

[@infuriatedtroopa9158]

Absolutely incredible interview!. Thank you.

[@nardewww]

I gor tears in my eyes during the discussion. So incredible.

[@cartoonvandal]

Onions?

[@liamhays4521]

So very excited for this 👌🏼

[@wayou004]

absolotely love it, both what has been achieved sofar and how it is explained here. Brian greene ist just amazing, asking the questions in a way, the public can understand the answers. the virtual background is so well done too. and mr doeleman is a pleasure to hear also, very clear and understandable. thank you for this video. wsf is one of my favourite channels.❤

[@DivergentDroid]

You cannot see something that was created my mans imagination that you then reified into existence in your mind that is supposed to exist in a 2nd law of thermodynamics violation! - All of this is LIES to Control Your Mind!

[@13263846]

Closer n closer Space and time. Thank you 🤩😍🧶

[@Capetown2233]

Geeeeeee What an achievement, and as time passes Einstein brilliant becomes more and more profound

[@kenadams5504]

He was always profound...it just took the world 100 years to realise it.

[@realcygnus]

I remember when they were 1st planning this & just how ambitious it seemed at the time even to a science enthusiast. Great stuff !

[@kenadams5504]

Now they are planning a movie of one . That seems impossible too , but they have delivered the photo they spoke off before ....

[@manutara2007]

This channel should be watched in Schools all around the world.

[@duantorruellas716]

Using advancing computing power to push the envelope on seeing deeper into the cosmos. Outstanding 👍

[@SliceOfLife100]

Love that he wears a pin with the image of the black hole on

[@peterhovmand74]

Just wonderful. A perfect interview. Making me proud to be human. Thanks.

[@AlphaFoxDelta]

The EHT is truly a marvelous display of technology

[@nadiakojo1313]

I am ecstatic about this

[@MrRAAN1]

Shep and his team literally represents the future of astrophotography. I am incredibly hopeful and excited about what EHT will produce in the future.. This is only the beginning...

[@dialamark7863]

Thank you for this valuable context

[@DivineInfiniteRose]

I love how science is catching up with all the universal visions I’ve had. It’s so reassuring.

[@toottoot24]

You must be a genius.

[@MrVaypour]

When will you start selling things ZunZenTzu

[@DivineInfiniteRose]

@@toottoot24 no just like to travel

[@DivineInfiniteRose]

@@MrVaypour don’t know how to charge but if ur keep I’ll have a real time conversation about stuff

[@DivineInfiniteRose]

Keen*

[@glenbeh6185]

Wow, that was so incredibly interesting and so well articulated.

[@davegan69]

Any subject presented by Brian Greene is always worth watching. And other than his most recent book (whilst still a great read), all the other books he has written are a MUST read if you're interested in Cosmology and have no scientific background.

[@elizabethslack3612]

I would like to meet those who watched and commented on this vicarious journey into space time. We need to form a watch club.

[@chicochristiepace1321]

i wish you'll put one dish in our country. fantastic job guys! very inspiring!

[@carissa8283i]

Thanks for your time gentleman and all your hard work

[@lindaungureanu8661]

Wow!!!! This will be amazing!!!

[@---H_M]

Finally, an explanation of black holes i can understand!! Thank you!

[@kenadams5504]

You understood that ?

[@dennisestenson7820]

I love learning that they've been able to use data from multiple telescopes across the world to create higher resolution information than any one of the telescopes can alone. Interferometry has been used for many years at the Very Large Array telescope in western New Mexico. I'm happy to hear that similar technology has been expanded to encompass the world. I can't wait to see future technology increase the aperture of our telescopes to the diameter of the moon's orbit or the Earth's orbit or greater.

[@DivergentDroid]

You cannot see something that was created my mans imagination that you then reified into existence in your mind that is supposed to exist in a 2nd law of thermodynamics violation! - All of this is LIES to Control Your Mind!

[@patrickjeffers8703]

Question, what is the sculpture over Ayman 's shoylder,

[@patrickjeffers8703]

The future will be a place that none of us are willing to miss.

[@DivergentDroid]

@@patrickjeffers8703 You are so right because more people are waking up to the fact the Earth is Flat, stationary and space is not a vacuum with planets in it everyday. Once everyone knows, the corrupt mafia who run this world will no longer be able to enslave us. We will be free and life will be glorious.

[@Dush1236]

I love how this guy has his entire lifetime work pinned on his coat!

[@UROOZFATIMA190]

Physics is just amazing so so Amazing Every time when i think about physics,it blows up my mind This universe is so mysterious really.

[@mamaseeds]

Spectacular images, which lead the curiosity to wander from the viewpoint - if telescopes were to capture imagery from a sidereal vantage point, what changes? Appreciating the wonderful work that's been conducted to date, but the size of planet Earth in relation to the observed suggests that the data will be limited - not only in clarity but also in content. So from a novice perspective, with 'wild' imagination, emergent questions are: 1. How could a range of telescopes be created to capture imagery from a vantage point sidereal to the black hole? 2. How far beyond (behind) a black hole could a telescopic camera be placed? 3. The double slit experiment shows that a photon can be in two places at once, so can the same be done with a teeny-tiny camera? No apologies for being 'wildly' imaginative Thank you again World Science Festival!

[@RoundBallDefender]

Imagine a rabbit hole trek so grand, so deep, on YT, and you find yourself in it watching videos on black holes.

[@markjou9799]

I seen a black hole in my room back in March of 1986. It was in my room and lasted for a few minutes and gradually got smaller until it disappeared. It was a perfect deep dark black circle. I actually remember it and that week quite well.

[@avo616]

I'm Einstein's dad.

[@cibernauta49]

Excelente reportaje y gran maestría en la exposición de todos los conceptos físicos.

[@ByronGoodman]

Excellent talk. I hope they continue their success.

[@yelixir]

the fact that they're going to have actual videos and pictures of the first disk is insane, comparing it to the black hole in interstellar is a good in my opinion because seeing the thing from the movie in real physical life would be pretty insane

[@DrssaFerri]

Thanks a lot Professor Greene!!!! The event was extremly interesting and I am still totally amazed by your simple but deeply incredible explenation that the force to escape a BH is the same to stay put in time, it is remarcable to me how it gives a simple but powerfull understanding of the Relativity equation behaviour and time-space strong connection.....

[@DivergentDroid]

You cannot see something that was created my mans imagination that you then reified into existence in your mind that is supposed to exist in a 2nd law of thermodynamics violation! - All of this is LIES to Control Your Mind!

[@RSRrobertwalker]

Absolutely agree! Thank you!

[@SirJasperKCMG]

Seeing is believing...I look forward to Shep doeleman receiving a Nobel prize for imaging a black hole.

[@arjunroy4468]

Brian Greene is a Genius!

[@trueviv]

Wonderful production !

[@sagarpatel3043]

I really want to attend live WSF 😄

[@jayceasar2661]

thank you brian and shep

[@raymondwilliams2609]

I don't know about you but I find it very exciting to think of what's to come in the future; close-up photos, videos, more data on size, etc ! The only painful thing is that I won't be here to see most of all of that. Mortality really sucks the big one sometimes !

[@alexpearson8481]

This was really well done. It would be interesting for one of these physicists to do an interview about the dynamics around a black hole. For example what frame drag might mean for a spaceship flying through it, and how frame drag and an object orbiting the black hole might interact. Too many black hole videos cater to novices. I love to see a video that goes a little deeper into the strangeness of a black hole, without getting into too much math. IDK. My thoughts anyway. At the end of the day I guess these videos are for viewership. Maybe that’s why?

[@vijaystanleymed6335]

The royal institution video about black hole ...very different video

[@alexpearson8481]

@@vijaystanleymed6335 thanks Pal.

[@vijaystanleymed6335]

@@alexpearson8481 the other end of black hole..name

[@sykarishabh8468]

My favourate sir Brian greene ❤️❤️

[@stevebrindle1724]

It's fair to say black holes were predicted by mathematics and confirmed by observations of their gravity affecting the bodies of matter orbiting them. What a wonderful example of the amazing power of maths! (Please note American cousins, Mathematics or maths is plural so saying Math is very annoying to us in the UK! 😂)

[@ashoknaganur8551]

Great thrill to know about black holes and I think it can explain more about the universe

[@denizel5946]

I really love you guys:)

[@albandrejaj]

Dr Greene. God bless you

[@trayvonparker4772]

Not only is the guest intelligent but so is the host!

[@FuadJalil]

As usual a very interesting session. I wish I knew the title to the music in the end. I could enjoy it all day long...

[@brisas361]

Great show, what makes a black hole spin or not spin? Thank you

[@batmanarkham5120]

Thank you for the video

[@silviadallatomasina5780]

Thank you for this interesting event! A question about super-massive black Holes at the center of galaxies: which is their possible role in the formation of a galaxy?

[@K1lostream]

I've wondered about it too- I hear it said that super-massive black holes are found at the centre of 'almost' every galaxy, but not heard much elaboration beyond that. I suppose it's an interesting question as to how these things form - I mean if you look at the accretion discs of matter piling up, unable to get in, and the relativistic jets of matter being spewed out, these things are messy eaters, like a baby with an ice-cream, only a small percentage ends up in the mouth, the rest of it just gets sprayed everywhere! So how do they get so massive in the time they've had?

[@andreaoricci2422]

It may be that, when a region of area flattens just enough to create an immense amount of energy, the energy itself collapse inward generating an outward propagation of dark energy. I immagine that black energy, which associates with the acceleration of the expansion of the universe, stems from that very fraction of explosion, a black hole. Therefore, it is the centre where a galaxy expandes.

[@sunnyr1912]

It's incredible how people can be led to believe anything. For example, creating subtext for virtual human trafficking, by using current war technology for commercial peeping tom purposes. Adding the subtext to a variety of fields let's you know how fraudulent various "professional" fields have become. Imagine "scientists" being able to trespass & observe anyones privacy & phrase it in their on "professional" jargon. Whatever it is, watch it again & then see what you think of these "scientists".

[@TheMackdaddy001389]

What came first the supermassive black hole or the galaxy

[@robertjohnston9023]

Like most things about the Universe around us! We have no clue!!!

[@trentbateman]

If I worked for Shep I would be so motivated to go to work every day

[@adrib3510]

This people are the real rockstars of our generation. Support them at all costs.

[@jasonkaras530]

For a lot of us armchair science nuts Mr Greene brings us generational updated fascinating insights into modern day physics. Sorry for lack of comma’s 😅

[@shawnouellette1953]

Amazing

[@KidKrypto]

This is so relaxing to watch 🫶 thank you for sharing I really enjoyed it 🙌

[@troyyoung1121]

Hi Brian Loved this 👍 Would the energy produced from two blackholes colliding, if harnessed be the amount required to open a wormhole between universes ? Pls answer x

[@myronjohnson3909]

Earthling: Ok, let's see if this works. Hit the switch. Sagittarius A: I feel like I'm being watched.

[@luminouswolf7117]

Decades of hard work and perseverance Nice

[@philliptorres2397]

i miss going to the world science festival, when can we see tickets again?

[@johncollinson4147]

How do I like this video a thousand times?

[@imadudd5]

Give this guy a noble prize

[@redredwine1277]

Thanks again🌺🌷🌸

[@chickenporkadob0]

Mr. Greene ♥️♥️♥️