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Imagine an invisible dark sphere with a mass of 10 million suns hurtling through a void at a speed of almost 1,000 km/s. It is tearing through deep space so fiercely that it leaves a trail of starfire 200,000 light-years long in its wake. Newborns sleep twice as long as our entire galaxy. This is not some cosmic horror. This is a real object called RBH1, which literally means the first ever confirmed supermassive black hole.
Fugitive. It was recorded in late 2025 by the James Webb Space Telescope. He saw a massive shock wave in the city, where this monster compresses gas with such force that it glows in the infrared range. This discovery shocked astronomers. It turns out that even supermassive black holes can hurtle through space like giant rockets capable of destroying entire star systems. The question arises, how many types of black holes are actually hiding out there? Welcome to our absolute bestiary of emptiness, which challenges the very concept of reality.
What black holes are lurking in the neighborhood? If you're looking for a safe neighborhood, the Milky Way isn't the best place. For decades, we believed the nearest monster was V 616 Unicorn, 3,000 light-years away. But Guy's mission has just discovered another, even closer. Just 1,560 light-years away in the constellation Ophiuchus lies Gaia BH1. It is a dormant stellar-mass black hole hiding in plain sight. She was kidnapped only by the desperate swaying of the star she was dragging behind her through the darkness. This is the first species in our bastiari. Nomads. These are stellar corpses left after the collapse of massive stars. We used to think they were easy to track because they usually stayed paired with a
companion star. But Gaia B1 is a sleeping giant. It does not actively feed, so it does not emit light or heat and does not give any warnings. This is a sphere the size of a canteen, holding the mass of 10 suns, located literally in our cosmic backyard. And she is not alone. Only 1,900 light-years away is its older sister Gaia BH3. This nomad is a true anomaly of nature with a mass 33 times greater than the sun. It is the most massive stellar black hole ever found in our galaxy, drifting silently in the halo of the Milky Way. Without high-precision satellites observing the movement of stars, we knew nothing about its existence at all.
The most disturbing thing is that we only find them because they have a hostage star that gives them away. According to current estimates by astronomers, there are at least 10 million black holes lurking in our galaxy. And many of them actively hunt. Due to the asymmetric push, the uneven explosion during the death of the Star, some of these newborns are thrown out of their native systems at speeds of hundreds of kilometers/skunk. These are nomadic exiles, solitary hunters wandering among the starry void. And now we know that this species is not limited to small stellar corpses. A prime example is RBH1, which is at least twice as massive as the supermassive black
hole at the center of the Chuman Path. Fortunately, it drags its stellar plume 8 billion light years away from us. But, frankly, we have no way of knowing if any of the nomadic exiles are headed for our solar system until they start to tear apart the Oort cloud. So what if it appeared near the ground? Wouldn't you see a black disk on the horizon? A stellar-mass nomad exile would be only 60 km in size, roughly the size of New York City. But since gravity is not uniform, the side of the earth closer to the hole would feel a much stronger pull than the opposite side. This would lead to spaghettification. One side of the planet would be pulled with a force millions of times greater than the other.
Tidal forces would transform our crust into ribbons of plasma, spiraling into a singularity until the Earth literally breaks into nothing. But as dangerous as nomadic exiles may be, they must be relatively rare. At least, that's the generally accepted theory. Current models suggest that the probability of an asteroid destroying our civilization is orders of magnitude higher than that of a black hole ever impacting the solar system. But if nomads are the invisible, albeit accidental, mines of galaxies, then the next species in our Bastiaria are their anchors, and they are not hiding.
26,000 light-years away, at the very center of the Milky Way, lies Sagittarius. Ah, but don't let the name fool you. This is not just a dead star. It's a monster with a mass of 4 million suns, squeezed into a region smaller than the orbit of Mercury. For billions of years, this insatiable engine has been the heartbeat of our galaxy, dictating the orbits of stars in the galactic center. Sagittarius A is our closest architect, one of the top predators of the cosmic food chain. While nomads weigh several dozen suns, the mass of architects is measured in millions of billions, and their gravitational influence spans light
years. But in 2014, something happened that shocked the scientific world. A gas cloud called J2 challenged death. It touched the event horizon of Sagittarius A and escaped at a speed of 10 million km/h. It was later discovered that G2 was not a cloud, but a star covered in a dense atmospheric shroud. That's why she experienced a dangerous close encounter with our top predator. However, he is a fairly polite eater compared to the titans of the deep. In the galaxy M87 there is a black hole 6 billion times heavier than the sun. In 2019, it became the first black hole to be photographed directly,
with a terrifying ring of fire surrounding a shadow of absolute nothingness. To put it into perspective, if a stellar black hole is the size of a city, then this architect is larger than our entire solar system. One wrong turn in this area and your existence is erased. But the absolute king of this bestiary is TON 618, located at a distance of over 10 billion light years. Tone 618 is the ultimate, ultramassive black hole. Its estimated mass is 66 billion suns, and its diameter is 390 billion km. Enough to fit 11 solar systems in a row. This voracious monster feeds a quasar 140 trillion times brighter than our sun.
It is a cosmic beacon visible from the very edge of the observable universe. But as of 2026, tone 618 may have been dethroned. Deep within the heart of the Phoenix Cluster lies a new nightmare. Phoenix A is a monster that defies even ultramassive classification. Current estimates put its mass at a staggering 100 billion suns. If tone 618 is a lighthouse, then the phoenix is a gravitational tomb.
It grew to such incredible size by swallowing the central black holes of at least three massive galaxies during a chaotic triple merger. The scale of this architect is incomprehensible. Its event horizon has a diameter of 590 billion km, which is 100 times the distance from the Sun to Neptune. If you were traveling at the speed of light, it would take you over two months just to make one revolution around its circumference. But the danger of the architect lies not only in its size, but also in the deadly environment it creates. The black hole in Messier 87 is consuming matter so violently that it forms an X-ray jet 5,000 light-years long.
If any civilization crossed this plasma beam, it would evaporate instantly. Even a swan, a smaller black hole, emits radio tails that are 2x times longer than our entire galaxy. But what's really scary is that you may not even realize you're being consumed. Unlike tiny nomads that tear you to pieces and count down the seconds, an ultramassive black hole has much weaker tidal forces at the event horizon. Time would slow down so significantly that you could theoretically cross the event horizon and live the rest of your life inside, never realizing that the Earth had been digested. Architects represent the absolute limit of gravity. They set the rhythm of the universe, holding entire galaxies firmly in place What could be scarier or stranger than them?
It is here that our Betiarius takes on a truly dark color. We have stumbled upon the largest missing persons case in the history of astronomy. Logic dictates that if you have nomads the size of a container and architects the size of a solar system, there must be something in between. Intermediate mass black holes This is a species of elusive anglerfish. They must weigh from a few hundred to 100 thousand suns. But for decades they remained the most annoying missing link in the universe. Finding them is like trying to see a specific shadow in pitch darkness.
You see, without these drivers, our understanding of reality collapses. We don't know how a nomad grows into an architect. It's like looking at a world full of babies and 90-year-olds, but never seeing a single teenager. If these intermediate black holes do not exist, then there should be no giants at the centers of galaxies either. But it seems the hunt is finally bearing fruit. In 2024 and 25, scientists began to find undeniable evidence hidden in the most crowded places. After mapping the wild whip-like motions of stars at the very center of the Omega Centauri star cluster, astronomers have concluded that they are being pulled by a hidden, elusive angler with a mass of thousands of suns. In 2024, Hubble and Gaia
confirmed the existence of seven stars moving rapidly in the supermassive star, which proves that this is where the intermediate black hole is hiding. It weighs at least 20,000 times more than our sun and lurks in our own galactic backyard. Another clue lies 290 million light- years away in a dwarf galaxy called HLX1. This is a near-perfect example of our extinct species. It is also an object with a mass of about 20,000 solar masses. It occasionally flashes with X- rays as it absorbs a passing star. These rare events are like a bolt of lightning in the dark, giving us a
fleeting glimpse of a species that prefers to remain hidden. We've even recorded ripples in space- time, gravitational waves from collisions like GW190521, which created a black hole with a mass of 142 solar masses. This was our first definitive evidence that nomads can merge to form intermediate-mass black holes. And these are just three of them. The scary thing is that this species shouldn't be so rare. If the universe is a factory of black holes, intermediate ones should be everywhere. The fact that they are so hard to find probably indicates a gap in physics. Are they simply too quiet, drifting into intergalactic voids where there is nothing to eat? or nature skips this stage altogether, going from small to
massive immediately through a process we haven't yet discovered. If we were to come across such an elusive creature, it would be truly terrifying. Its event horizon is about 60,000 km wide. That's barely five times the diameter of Earth, but remember, it has a mass of up to 20,000 solar masses. If it collided with the sun, it wouldn't just be a collision. This would be a tidal disruption event. As it approaches, gravitational tides become so powerful that they overcome the internal pressure of the sun. Our star would literally lose its round shape, stretching out into a long, glowing band of gas.
Spaghettification on a stellar scale. Half of the sun's interior would be ejected into the void at a speed of thousands of miles per second, while our other half would spin around the driver, forming a blindingly hot accretion disk. For a few short weeks, the solar system will light up in a flash with more than a billion suns before our sun's death cry, before the angler falls silent again. In fact, its mass tells us that it should have swallowed more than one star. But there is new evidence. The earliest black holes had nothing to do with stars at all. You see, as the James Webb Space Telescope peers deeper into the void, and into the past, it continues to find impossible black holes.
The web has discovered monsters like UHZ1, which already weighed 40 million suns just 470 million years after the big bang. This kind of leviathan creates a real mathematical nightmare. If black holes are just dead massive stars, these seeds would have to feed at a rate that defies the laws of physics to get so big and so fast. To grow a giant with a mass of one million suns in such a short period of time, the parent star would have to be a single glowing ball of gas weighing more than 100,000 suns. Such a star is physically impossible. Its own radiation would tear it apart before it could even fully form.
So, if the stars weren't that huge, where did these black holes come from? Perhaps the answer came in July 2025 with a discovery in the Infinity Galaxy. Astronomers have discovered a newborn supermassive black hole weighing 1 million solar masses that was not located at the center of the galaxy. She was supposed to be born in no man's land between two merging nuclei. But as the only viable theory, outright collapse. She claims that a violent cosmic collision compressed a massive gas cloud with such force that it completely missed the stellar phase.
Instead of disintegrating into tiny suns, the entire cloud, a million suns' worth of matter, collapsed into a single, heavy seed at the same time. We are watching the birth of a supermassive giant in real time, proving that nature can jump-start a growth process that would otherwise take billions of years. And this has even deeper consequences. If this happened 8 billion years ago, then it happened even earlier, at the dawn of time. This brings us to the oldest species, primordial black holes. This is a seed that probably didn't even need a gas cloud. They were born in the first fraction of a second after the big bang,
formed from the raw chaotic density at the birth of time itself. While direct collapse creates giant leviathans, primordial black holes can be any size: from the mass of a mountain to the mass of a planet, formed before the first atom came into being If this primordial seed really exists, it could be the invisible dark matter framework of our universe. It was thanks to them that galaxies were able to form, acting as gravitational anchors for the very first star clusters. In fact, trillions of these microscopic fossils could be drifting through our galaxy right now. Invisible and silent. They hint that we do not live in a universe of light, but in a universe of shadows, darkness, and planets. These are only temporary
decorations on a cosmic skeleton woven from the ancient one. Nothing. But here's the thing. If trillions of these microscopic relics are indeed blocking out space, we should observe them creating a microlensing effect, distorting the light of distant stars as they pass in front of them. We should hear a pop as the smallest of them evaporate into gamma rays. However, despite all our efforts, we see nothing of the sort. We simply don't know how many primordial black holes may still be roaming our galaxy. We don't know whether the Leviathan of direct collapse we saw is a rare anomaly or whether it's the standard scenario.
Most physicists agree that both of these species are too rare to solve the mystery of dark matter. This leaves us in a state of cosmic vertigo. Even with the amazing capabilities of the James Webb Telescope, our black hole bestiary remains largely empty in almost every category. In other words, we have a list, but no census. However, there is a theoretical kind of black hole that blurs the line between gravity and the subatomic world. Quantum freaks. Such a black hole would have to be the size of an atom and the mass of a mountain. Theoretically, they could form when a microscopic patch of space suddenly receives an energetic jolt from a supernova. At that very moment, a quantum black hole squeezes into reality.
But unlike their massive relatives, these tiny species are inherently unstable. According to Stephen Hawking, these microholes should evaporate rapidly and violently due to Hawking radiation. But there is an interesting theory that evaporation reaches a hard limit at the Planck scale. A black hole can reach a point where it can no longer contract, leaving behind a stable microscopic remnant. If this is true, then every quantum black hole ever born since the beginning of time still exists. Trillions of these subatomic monsters, each about the mass of an asteroid, can drift in the vacuum of space like invisible dust. But don't worry, if any of them hit the ground, it will just pass right through the planet. To us, it
will look like a meteorite falling, but without any debris. Terrifying. So, what's your favorite species in this bestiary? Let us know in the comments.
