Almost every giant black hole spends eternity sleeping. Waking up is rare — and catching one right when it awakens was, until now, almost impossible. But the Japanese XRISM telescope managed it. Hundreds of millions of light-years away, in a galaxy that manufactures stars at an industrial rate, it caught a supermassive black hole at the exact stage where it awoke and began to strangle the galaxy itself — firing not one, but three "bullets" of gas at up to 14% of the speed of light. In this video you'll understand how such a monster awakens, why the wind it spews kills the galaxy, and why all this may be a rehearsal for what one day awaits our Milky Way.
⏱️ Chapters:
00:00 The galaxy that kills itself while creating stars 00:56 Why waking up is rare 02:57 What wakes up a giant black hole 04:08 The roar of the monster 06:40 The new eye: XRISM 08:29 Three bullets at once 11:16 The rehearsal of the Milky Way's future #universe, #perfect universe, #galaxy#Mysteries
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Video Summary
AI Generated
The video explains the rare phenomenon of a supermassive black hole \"awakening\" during a galactic merger. Using data from the XRISM telescope, scientists captured the exact moment a black hole began consuming gas and emitting \"cosmic bullets\"—ultra-fast winds that halt star formation—providing a glimpse into the potential future of the Milky Way.
There is a galaxy, hundreds of millions of light-years from here, where we have just caught sight of one of
rarer phenomena in the universe. This galaxy was forming stars at nearly a constant pace
industrial, dozens of times faster than a common galaxy. Only right at its center,
Something has changed. A supermassive black hole has awakened and altered the entire production dynamic. And for
to complete the euphoria of all lovers of space exploration, including this one who addresses you
Hello, thanks to our technology, the awakening of this giant was recorded, revealing a
destructive force of a scale difficult to imagine, and that also shows us a preview of
that one day might happen right here with our Milky Way. Almost every large galaxy has one
black hole at the center, and the vast majority of them spend most of their time in a state
completely asleep and silent. A dormant black hole does not shine; it reveals itself through a
way only by its gravity, the deformation it causes in the space around it. The black hole at
the center of our own galaxy, for example, the star Sagittarius A*, is sleeping at this very moment
moment. But a more interesting example of this is located far away from here, a gravitationally
gravitational lensing of two galaxies, called the cosmic horseshoe. At the center of this system lies one of
the largest black holes whose mass humanity has ever determined, a monster with
36 billion times the mass of the Sun. Astrophysicists determine the mass of a black hole by measuring the
the movement of stars and gas swirling around it, with gravity serving as the tool.
Imagine the following, okay, to understand this. Our friend is over there in absolute silence, almost not
It swallows nothing, emits nothing. Even so, merely by its gravity curving the space around it,
We've already managed to make this estimate. I wanted to talk a bit about this particular black hole.
because the one who did this calculation was a Brazilian, people. The astrophysicist Carlos Roberto de
Melo Carneiro, from the Federal University of Rio Grande do Sul. Yeah, and you over there thinking that the
Our scientists were irrelevant, huh? Fine, we already understand that most of these giants pass
billions of years asleep. Finding one awake is an exception, and therefore worth recording.
This awakening was practically impossible. So what could possibly wake up a monster like that?
Final? Everything begins with a collision. Occasionally, two galaxies approach each other too closely and begin
melt together. It is a slow process that drags on for hundreds of millions of years. The gravity of
One pulls and tears the other apart. Then the following occurs: giant clouds of gas that were
calm and scattered ones are thrown against each other and collapse. When I say they collapse,
It's that they collapse in on themselves. Gravity squeezing everything toward the center, right?
Continuing, gas collapsing is the recipe for star formation. That is why a merging galaxy
That star factory I mentioned at the beginning. Stars are born at a rate of up to 100
times greater than that of a typical galaxy. But not all of this gas turns into stars. Part of it collapses
toward the center of the galaxy, right where the dormant giant black hole resides. The gas falls
Straight in his mouth. It's this banquet that awakens the monster. Only, that gas, it doesn't fall straight down.
straight inside. It spins around the black hole faster and faster, flattening out into
a disk. This disk is called an accretion disk. The friction between the particles within the
The disk heats the gas to millions of degrees Celsius. It becomes so hot that it starts to glow. And it glows.
but even the galaxy itself surrounding it. When this happens, the center of the galaxy gains up to
a distinct classification. It becomes an active galactic nucleus. The point that was the darkest
the universe becomes the brightest in the neighborhood. And all this energy needs to escape.
somewhere. She pushes the material out in the form of ultra-violent winds. The fastest
It has a technical name. They are ultra-fast flows—jets of gas shot at up to 30% the speed
It gives light. The scientists themselves nicknamed them cosmic bullets, making reference to bullets from a firearm.
Even so. Now look at this interesting part. It's these cosmic candies that kill the galaxy. They sweep
Cold gas away. Cold gas is the raw material that makes stars. Without this gas, production
falls from the stars. The monster awoke thanks to a banquet of gas. And when it awakens, it begins to
blow out precisely the gas that would still have formed more stars. The same force that gives life to the galaxy
It's the force that condemns her. It's quite... elegant, one might say, right? Only that it had a
problem. This moment of turning point, the black hole awakening precisely at the instant when the stars still
They are being born—this has never been definitively observed before. This moment is too quick. A
The entire theory was right there in hand. Only one thing remained—grabbing a galaxy at the precise moment of transition.
If you've made it this far, you've already noticed that this channel is different. I'm Vinícius.
And this video is the result of a real investigation. Each image you see here is official material from the
Space agencies. So if you're enjoying the content, subscribe to the channel and leave a like.
It's free for you and really helps here. Deal? Let's go ahead.
To achieve this transition, we needed equipment up to the challenge. This equipment
It is XRISM, a space telescope led by the Japanese Aerospace Exploration Agency in partnership with NASA.
It was launched in September 2023 and commenced operations in March 2024. From here on
Alright, I'll refer to him as XR from now on, okay? Because saying XRISM all the time is tedious.
Complicated. You understand, right? So let's go. The XR doesn't see ordinary light; it sees X-rays.
And this is not just a minor detail. That gas is millions of degrees near the black hole, and the
Cosmic blasts that he fires shine precisely in X-rays. It's the right band of light to catch them.
The monster. It carries two devices, a camera called X-Tend that captures the scene
complete and a spectrometer called Resolve, which decomposes X-rays with the level of detail that
no device had achieved this before. Now, only one thing remained—aiming at the right target. And the scientists
They had a perfect candidate: IRAS 05189-2524. It is a galaxy merger located about 600 million light-years away.
light from here, in the direction of the constellation of the Hare. It is wrapped in dust, shining brightly in the
infrared, at the peak of that star factory. And earlier observations had already provided a clue.
The black hole at its center seemed to be beginning to awaken. It was the right galaxy.
at the right moment. What exactly we are looking for here are the Cosmic Bullets, the bullets
Cosmic. Do you remember them? The black hole's jets, those winds that sweep away the gas and kill the galaxy?
They are the weapon of the crime. If we could catch that wind at the very instant it
Sai, he would have caught the monster red-handed, awake and shooting. The problem is measuring that
Wind is extremely difficult. It is an invisible gas located 600 million light-years away from here.
So how do you measure something like that? We measure it by iron. Within that gas there are atoms of
iron that, in extreme heat, glows at a very precise mark of light, functioning as if it were a
fingerprint. If the gas carrying this iron is coming toward us, its mark will be
When displaced, the light is squeezed, and what scientists call a blue shift occurs—the shift toward blue.
You've probably heard of the opposite, the Red Shift. It's when a galaxy is moving away and the light
The redshift. That's how it was discovered that the universe is expanding. The Blueshift
It's the opposite—something coming up toward you, squeezing the light into blue. The most famous example
is right here beside us. The Andromeda galaxy is coming toward us, and that's why its light
slightly bluish here for us. So the XR's plan was straightforward: find the iron mark inside
the cosmic rays, measure how much she was shifted toward blue, and then calculate the speed
That wind is being fired. And that's when the surprise came. Three winds were recorded exiting.
At the same time. The first at 7.5% of the speed of light, the second at 10%, and the third at 14%. More
at 40 million kilometers per second. There, exactly at that stage, was when this black hole awoke.
devouring everything at the absolute maximum allowed by physics. This is the moment that had never existed before.
Sido caught before, the moment of the turning point. It wasn't inferred or reconstructed—it was seen. Three bullets
cosmic rays carrying 100 times more energy than any winds previously recorded there. Plenty of force
to sweep away the cold gas and extinguish the star factory. The monster awoke and had already begun to
destruction. Maybe you're a bit worried right now, because at the beginning of the video I told you
that all of this could be a rehearsal for something that might happen here with our galaxy. It stays
Calm down, young man. If it actually happens, we won't be here to see it. The black hole at the heart
From our Milky Way, Sagittarius at the Star is sleeping, but company is arriving. A
Andromeda galaxy, the one coming toward us, is on a trajectory that may one day cross
with ours. For a long time it was said that this collision was practically certain, in about five
around billions of years. A recent 2025 study recalculated the figures and significantly reduced this estimate.
Certainly. But if it happens, you already know how the script goes. Two galaxies merging,
Gas collapsing, and at the center, our sleeping monster receiving a banquet, and finally
awakening. What the XRSM captured perhaps 600 million light-years away might be a portrait of the cradle and the
the tomb of our own galaxy. Everything we've seen today—the bullets, the gas, the black hole awakening—
It was born from a single thing: a new instrument capable of seeing what had previously been invisible.
And that is precisely what is about to happen again, on a much larger scale.
This weekend, on August 30, NASA launches a telescope built to hunt for the dark side.
invisible to the universe. Dark matter, dark energy, and everything else we've never been able to see.
I told the entire story in this video here, click the card and I'll see you there in a few seconds.
My special thanks to the channel members for their support and trust in this
project. And if you'd like to help me as well, consider becoming a member.
Stay curious always, best regards, and see you in the next video.