How One Picture Solved a 90-Year-Old Problem in Astronomy
How One Picture Solved a 90-Year-Old Problem in Astronomy
The Event Horizon Telescope released the first picture of the Milky Way’s supermassive black hole, Sagittarius A* (Sgr A*). This is the second picture of a supermassive black released, only after M87* lying 55 million light-years away. It took decades to master the technique used to capture the image of the two black holes. However, the story began about a hundred years ago when radio astronomy hadn’t started. So what happened back then that led astronomers to point their telescopes in Sagittarius constellation? How is the image of Sgr A* black hole different from that of M87*? And most importantly, why is it so crucial for physics and astronomy?
This episode of the Sunday Discoveries Series answers these questions in detail
All episodes of the series: https://bit.ly/369kG4p
Basics of Astrophysics series: https://bit.ly/3xII54M
Created By: Rishabh Nakra
Written By: Simran Buttar and Rishabh Nakra
Narrated By: Jeffrey Smith
REFERENCES:
EHT Press Release: https://bit.ly/38C3Mx6
Genzel 2008 Paper: https://arxiv.org/abs/0810.4674
S2 Star: https://www.eso.org/public/videos/eso0226a/
Webb and EHT Collaboration: https://go.nasa.gov/3NM2qPh
The Secrets of the Universe on the internet:
Website: https://bit.ly/sou_website
Facebook: https://bit.ly/sou_fb
Instagram: https://bit.ly/sou_ig
Twitter: https://bit.ly/sou_twitter
New Video: Rapture Signs! – Six-Day War & Pentecost on Same Day June 5th & Obama Graveyard Gala June 4th. Yup the satanic BO Gala at the B.O.tanic Garden
MMMM Donuts !
Nice presentation thanks nmdpatta50 age78 ciniur Ctizen 78 BARSHI
The Black Hole in the Center of our Milky Way Galaxy could be a Portal to Heaven
This thought came to me yesterday while I was watching this video
But there is no way that anyone could go through
wtf 6000 tb of data printed on a paper…
Earth Protector crying in the corner
Almost *one fourth* of the comments on this video are by angry flat earthers… smh
Not one mention of Grote Reber, who built the second radio telescope in the world, and was the world’s only radio astronomer in the 1930s and 1940s. With this telescope, he also created the first radio map of the Milky Way galaxy in 1944. http://www.bigear.org/CSMO/Images/CS13/cs13p17al.gif
in other words Avatar the real world
I wonder why everyone says "donut on the moon". Almost like the story was written elsewhere.. sad.
Nice video. You might want to correct the subtitles, it probably used a previous version of the script. At about 4:04 it has a sentence that’s not present in the video? "But why do we refer to it with an asterisk?" or something along those lines (can’t be certain because dumb YouTube for Android discards your comment if you play the video). Having that, I think the sentence should have been in the script, many people don’t know what the asterisk mean and it’s kind of an enticing way to start the explanation.
Fake images by EHT. You can’t take a bright point spewing massive amounts of high energy photons and get a doughnut shaped ring with a dark center. I call bullshyt. I’ll wait for new and improved telescopes more advanced to confirm or deny their results. I assume EHT committed scientific fraud to protect the reputation of Einstein’s field equations on gravity.
👍👍👍
= ragnerous gotta play world of warcraft to know him? scarry challange the rest get easyer?
👍👍👍
Wouldn’t they get a better image if they looked at the supermassive black holes in one of the satellite galaxies orbiting our galaxy, but closer to Earth? I remember reading a few years ago they discovered one a little over 1,000 light years from Earth.
Why does it look blurry
Not only astronomy but also good change in human race
All lies.how can you photograph the so called black hole when you claim that even light cannot come out of it.All the talk is FRAUD.
Didn’t we see 5 super massive blackholes in that video.
Given it’s been confirmed to be a BH, should it really be called a ‘star’ at all?
wtf 6000 tb of data printed on a paper…
Earth Protector crying in the corner
When looking at Sgr A* in optical wavelengths of light nothing appears in the images where Sgr A* is located. But when you look at the location in high energy short wavelengths of light using radio telescopes it is an extremely large hot spot. So, what spectrum did they use to turn the hot spot of high energy radiation into a doughnut shaped shadow? Because all the high energy photons contains too much information to image a dark hole in the center where all the energy is radiating from. It’s not considered science until multiple studies by different telescopes can confirm or refute the results.
What’s the use, we would never be able to reach there or to any closest star.
I just curious, if they can manage to take a picture of a black hole that are very very far away from our planet, why they havent take the picture of any observable planet or stars that they discovered like UY scutti etc, I means its supposed to be closer to our planet means, it will be look way more accurate and details unlike the black holes..
We need a new name for our black hole.
Gary
Why this channel is still under YouTube Gravitational subscribers Bending effect ?
Awesome video and Narration 💯
I like how the designation of a black hole is "*" now that’s confusing as heck, due to stars not having an asterisk designation- keeping to a tradition confusing jargon there, scientists!!
Which saggitarius A did you mean?
"A star"
So A* the black hole?
"No its /a star/…"
That’s what i said !
Andrea Ghez is amazing. In the beginning, many decades ago, most other astronomers/astrophysicist herself included, were all studying one main star: S1, but she decided to begin studying another star in the region called S2. Her research was even more difficult than it was for other astronomers because she did *not* have access to a telescope which stopped atmospheric distortion. Her work was painstaking but man did she stick with it!
Imo, it was mostly Ghez’s work which confirmed the black hole. Mr. Genzel (which to be honest I don’t claim to know a lot about) also started studying S2 (as did many others) and yes, the discovery was a joint effort amongst many people but Ms Ghez and Mr Genzel were jointly awarded the Nobel Prize for their discovery. Just in case anyone was wondering 🙂 *edited for typos
This I like on radio 1930 when I started on Radio 1935.
the James Webb space telescope can supposedly detect a bumblebee on the moon so we could yet get an image of sagittarius A
The notion that there is some way to take a picture of the galactic center is absurd. 99.8% of the mass in our solar system is in the sun. 99.9% of the mass of the mass in an atom is in the nucleus. If these norms are true for galaxies than we can infer that there is 100’s of trillions of solar masses at the center of common spiral galaxies. Wherever you have an astronomical quantity of mass "dilation" (sometimes called gamma or y) will occur. Mass that is dilated is smeared through spacetime relative to an outside observer. If we attribute a radius to these numbers than we can calculate that relativistic velocities exist in these regions because high mass means high momentum. In some sublime way the mass at the center of our own galaxy is all around us.
I wonder if you took Blender Guru’s tutorial for that donut
Hawking’s Paradox Solved
We love our Mother’s. This is the first glimpse of Mother Nature. What a cool video
Sagittarius Asterix is awesome!
If 10Gs can make a man pass out in a flight suit then imagine what a black hole would do to you, all hopeful theories aside.
👍👍👍
What if, We could travel interdimentionally via space, time & everything in between, directly through our Mind to another place or reality, leaving the Nautre in this one to prosper peacefully & regenerate on its own, to live a Life, peaceful and happy until #nature of that place needs Us to move to another.
Wouldn’t this be wonderful for Life and Nature to co-exist naturally?🤔
#Universe #Saveallearths #coexist #multiversalexistence #multiverse #Life
So, we can find a donut on the moon, BUT…not the Apollo moon landers or equipment! The logic here is fuzzier than the picture of the "black hole"
Amazing New discoveries about the Space!
If you get a chance to use the James Webb Space Telescope, what’s the first thing you would observe through it? Let’s see who’s got the most exciting target!
0:05 not the supermassive blackhole
Everything from nothing is scientific impossibility.
reasonable doubt? confirmed? strong language for a theory.
if light is massless then why it affected by blackholes
This is Crock of bullshit ! It is not a black hole 🕳 at all , but what left of a star after it life giving light as the matter that make up a star give it A higher gravitational pull , For instance you weigh is 150 pounds on earth and you Stand on Jupiter you would have the weight of a small car 🚗! The gravitational pull of a dead star is much grater than Jupiter for if you put a human hair on the surface of a dead star it would have the weigh of the planet Jupiter , it take thousands of years for Lava or magma to cool off as it dose a dead star that no longer produces light but The gravitational pull is still there and you get to close to The dead star and the body that makes up its mass there will be no way for an escape and considering the heat comes from a star light bend around heat it giving a dead star The appearance of a whole but what you are seeing is the hot mass that made up a star making light bend around it .
And the flares is objects getting too close to the gravitational pull and it hit the surface of a dead star making light or flares as you call them .. If it has flares then that mean it not a black hole at all but hot mass that make up what left of a dead star and when astroid hit it produces a violent explosion and light ….
Proof that Sagittarius’ are assholes 🤷🏽♀️
👏🏻👏🏻👏🏻
This is so stupid what good does it do human beings on Earth to know all this absolutely nothing… NASA is a waste of money everything they have done since they’re beginning in the mid 60s has done nothing for human beings on Earth, all NASA is, is big boys and girls with expensive toys nothing else… And before you people start hollering at me you tell me what good it it’s done for human beings on Earth… Since in the late sixties human beings have only got to the Moon no further. And with all that crap on NASA’s website about Mars most of that is bullshit, if someone has hacked into NASA’s website NASA would have said something by now seeing that they have not said anything this is just NASA playing stupid ass games…
The amount of information you can absorb from this video is incredible