Black Holes 101 | National Geographic


(mysterious music) – [Woman] Black holes are among the most fascinating
objects in our universe, and also the most mysterious. A black hole is a region in space where the force of gravity is so strong, not even light, the fastest known entity in our universe, can escape. The boundary of a black hole
is called the event horizon, a point of no return, beyond
which we truly cannot see. When something crosses the event horizon, it collapses into the
black hole’s singularity, an infinitely small,
infinitely dense point where space, time, and the laws
of physics no longer apply. Scientists have theorized
several different types of black holes, with stellar
and supermassive black holes being the most common. Stellar black holes
form when massive stars die and collapse. They’re roughly 10 to 20
times the mass of our sun, and scattered throughout the universe. There could be millions of
these stellar black holes in the Milky Way alone. Supermassive black holes
are giants by comparison, measuring millions,
even billions of times, more massive than our sun. Scientists can only guess how they form, but we do know they exist at the center of just about every large
galaxy, including our own. Sagittarius A, the supermassive black hole at the center of the Milky Way, has a mass of roughly four million suns, and has a diameter about the distance between the earth and our sun. Because black holes are invisible, the only way for scientists to detect and study them is to observe their effect on nearby matter. This includes accretion disks, a disk of particles that
form when gases and dust fall toward a black hole, and quasars, jets of particles that blast out of supermassive black holes. Black holes remained largely
unknown until the 20th century. In 1916, using Einstein’s
general theory of relativity, a German physicist named
Karl Schwartzschild calculated that any mass
can become a black hole if it were compressed tightly enough. But it wasn’t until 1971
when theory became reality. Astronomers studying
the constellation Cygnus discovered the first black hole. An untold number of black holes are scattered throughout the universe, constantly warping space and time, altering entire galaxies,
and endlessly inspiring both scientists and our
collective imagination.

Comments 100

  • A black hole is a region in space where the force of gravity is so strong, not even light can escape. What intrigues the most about these mysterious objects in our universe?

  • How does space exhist ? and where.

  • I THINK BLACK HOLE IS A KING OF TELEPORTER ????

  • It even absorbed the music from the video.

  • The black hole is the grave of the space .

  • Enigmaa!

  • It is an hole in space and time where no theory is possible ……

    You sad that by comprising mattter hardly we can make a black hole but i have studied that if we compress a matter and compress then there will be a time we can't compress it

  • Now the real picture of black hole is available

  • Hanya teori, belum ada pembuktian yang pasti

  • So light is a very very very thin solid?

  • Year 5,000 maybe life totally different

  • So these are basically Zip files of our Universe.

  • Does this mean there is a GOD controlling and running all this like clockwork

  • Schwarzschild is pronounced like Shvarts-shilt (IPA: ˈʃvaʁts ʃɪlt). Like most other Jewish German surnames, it's actually really cool; it means Black Shield.

  • Theories ???

  • BLACK HOLE IS NOT A HOLE OR BLACK THIS ARE TRANSFARENT GRAVITY WHOLE BECAUSE SUROUNDED OF DUST BLACK BECAUSE THE OTHER SIDE ARE THE SPACE, THE PROOF OR HOW TO FOUND ARE THE RAINBOW SURROUNDED OF MOISTURE THATS WHY HAVE A COLOR

  • Black holes are proof that we are in a simulation

  • Black holes gravity is very strong there for our galaxy and planets are whenever close distance then black hole attracted sun planet but my mind was really complex question
    1 what is the black hole real photo

  • Navy experiment

  • Navy experiment

  • TELL ME MOREEE

  • National Geographic:Not even light can escape
    The Flash:Am i a joke to you?
    Edit:wow 4 likes!

  • Where do the things or objects go after being absorbed by black hole?? That's a mysterious one. Do they go to the bottom of the black hole??????????????????????????????????????????????????????????????

  • I was surprised that even light could not escape the black hole and wanted to know more about the infinite universe.

  • how do we know what black holes look like ? we only have 1 picture in history but we have 0 even close to us…the only star that we have in Are solar system is the sun ! Does that mean the sun can explode and turn into a black hole ?

  • Black holes are not easily observed. But a picture of a black hole was posted on SNS a few months ago. Watching it, I felt a sense of wonder and wonder. I want to be a space scientist and see the mysterious phenomenon of the universe.

  • Black holes are not holes deep into the gravitational wave. The existence of gravitational wave is questionable! It is also believed that every celestial body within the universe is sitting on the gravitational wave! Really? Where is the spot that the earth is sitting on the gravitational wave that is inaccessible to anyone? None. Don't be silly the earth's atmosphere is so flimsy that how could it support the weight of the entire earth while sitting on the gravitational wave? A dying massive star will turn into a black hole that is running out of nuclear fuel. The dissipated heat especially within the core of the star is diminishing due to almost running out nuclear fuel that atoms are no longer kept at arm length from one another in which those atoms are crashing against one another under their own immense weight that they first reduce to quarks before reduce further to preons, elementary particles, where positive preons surrounded with negative preons to form a sturdy, dense superstructure. Therefore a black hole is a very dense celestial body that its gravitational pull is so strong that light can't  even "escape" from it. It's not true that photons can't escape from it since two jets of dynamic photons and debris being ejected perpendicular from the superstructure on both sides of the accretion disk. Black hole appeared to be dark patches because visible light will be skimmed and distorted by its strong gravitational pulls. Some truly dense black holes with billions times the mass of the sun still having the same structure, namely superstructure therefore preons should be elementary particles where no matter how hard the crunching preons can't be reduced to other particles any further. On earth, only existence of quarks have been proven experimentally, not preons. But the existence of black holes help us to know the existence of preons, elementary particles. The reason of the existence of black holes is to consolidate mass as the universe expanding further in which continuous weakening of gravitational has been countered by the presence of black holes. As the universe is aging further, the proliferation of black holes  will take place. Black holes are expected to disintegrate apart during mid of imminent implosion before Big Bang explosion. Preons within a black hole will continue to strengthen their intrinsic magnetic field as more and more universal gravitational potential energy has been transformed to kinetic energy and to hasten intrinsic spin of preons as the black hole is imploding towards the center of the universe. As continuous strengthening intrinsic magnetic field of preons eventually emancipating them before they would form into quarks before transforming into atoms. This is how black holes disintegrating apart to pave way for Big Bang explosion. "Black  holes" and all celestial bodies that imploding towards the center of the universe for thousands billions years in which before they almost reaching the center of the universe their velocities could be several times the speed of light. Therefore the scene of Big Bang explosion is beyond our imagination.  All celestial bodies have tremendous kinetic energy after Big Bang explosion that enable the entire universe to expanding further in already vast visible universe. We don't need the existence of dark energy to help explain why expansion of the universe is still taking place in already vast visible universe. If you are interested in real discoveries, I  would recommend you to read my book, The Unification Theory – Volume One and you will be amazed with lots of new, interesting discoveries. In God I trust.

  • But the real question is: are they 2D or 3D?

  • Cj what we are the best

  • stop calling them BLACK HOLES !

  • black hole er fasi chai

  • Hopefully I'll become a Spirit or ghost or something that I could explore the universe with my dead loved ones..it would be cool for eternity since it seems not to have an end..

  • Is Uranus a black hole

  • কেউ কি বাংলাদেশের আছেন

  • 2015: Sent humans to mars
    2050: sent humans to black hole

  • Black holes are not just get bigger size always,also they getting smaller.

  • Can anyone explain why if we arrive to compress enough a solid we will get a black hole?

  • Black hole dalam sabda Sang Budha telah dibabarkan, neraka yg masa karmanya lama dengan istilah manusia itu neraka abadi, bukan neraka avici atau jahanam, namun black hole melebihi neraka2 tersebut??

  • 2 types of black hole thing idk i know

    Steller black hole = massive star dies

    Direct collapse black hole = formed by a gas cloud that collapsed into its own gravity (this also created TON 618 the largest black hole*

  • I LOVE SPACE UwU

  • A black hole has been spotted to Uranus

  • I did not understand a single thing.

  • Γφξκδ

  • Would it be painful being sucked in or would it be instantaneous death

  • ?????

  • Well legend say if creatate itself

  • Say: He is Allah, the One and Only;Allah, the Eternal, Absolute; . He neither begets nor is born, And there is none like unto Him.
    ALLAH.S.W.T make all the universe with his wisdom and knowledge HE Alone is the creator of all things seen or unseen .He is Lord Of the Worlds .ALLAH AKBAR

  • "Ohm Namah: Sivaaya"

  • Ancora co ste minkiate

  • So black holes are the opposite of the big bang? Is that how universes form, by compression into the most dense black hole possible until it explodes?

  • The answer is found in vedas, and more particularly the ancient sanskrit text of Bhagavad Gita. There is a mention of a place in its text 6 of chapter 15, where once gone, there is no return- "yad gatva na nivartante." That place which is not illuminated by sun, moon or electricity. That is the abode of Lord Krishna. The meaning of the sanskrit word Krishna is "All attractive or the one that attracts everything and everyone" and another meaning is "dark."

    The Vedas hold more such secrets, they speak about knowledge which cannot be apprehended by our ordinary senses like eyes.

  • What, no Ultra-Massive Black Holes?

    Really, now…

  • Question, how on earth.. do we have a photo of our own galaxy?

  • That black hole it a first of universe .
    mean that the place where god beside.
    and all of this universe created of darkness.

  • Somehow, it makes me want to fall into it.

  • Good people, what am I missing here?

    0:18 Not even light, the fastest known entity in our universe, can escape a black hole. .

    1:57 Jets of particles that blast out of super massive black holes.

  • Black hole is the monster of space ☠️??

  • Uranus is a black hole.

  • Black hole only exist in the mind of a scientist all this b***** you're looking at is a CGI

  • The laws of physics have to apply in order for it to function. I believe its a different set of laws governing the black hole

  • If one super charged particle scapes the eventhorizon will be capable to create even a new universe.

  • Thank you NG for these very informative brief snippets. This is like a multivitamin tablet all the goodies the body needs in a small tablet. ??????

  • Maybe black holes don't draw in things . Maybe it's just the opposite.
    If our sun dies then it loses it's gravitational pull and the gravitational pull of planets draws it to them ? ?

  • We should send someone on death row into one to see what happens. Maybe that sicko kid who shot that school up 2 years ago

  • Black holes are a** holes

  • Ah yes, glad this showed up in my reccomendation. Had almost forgotten to take my daily dose of excistensial crisis today.

  • So amazing…???

  • The universe is a private space.

  • I never understood whats soo fascinating about black holes i honestly think they are one of the most boring, its pretty much just a giant magnet whats there more to it, it can trap light…? For instance star is absolutely interesting infact i think its the most interesting object, even super novas

  • I wish someone would quit flushing the toilet and we wouldn't have to worry about the black holes

  • ???——✈??☄????

  • I am maybe 10 but i have my theory ( like something a qestion ) about what was in the place where uneverse expanded

  • har har mahadev ? ?

  • Fun facts: Black holes can also rotate around themselves, changing their shape. They have a pretty strong magnetic field too. Black holes lose mass over time and they slowly die. The nearest black hole to Earth is probably 3.000 light years away. Finally, the statement made at 1:35 is wrong. The diameter of the black hole is about 25 million km, or about 6 less than the Sun-Earth distance.

  • I bear witness that there is no god but God and I bear witness that Muhammad is the Messenger of God

  • It’s looks like lord Vishnu Sudarshan Chakar.

  • Collective imagination ☯

  • Some scientists have theorized that subatomic particles which are particles that are smaller than hydrogen atoms like electrons neutrons and protons even photons actually mabye not photons because light cannot escape a black hole but people have theorized that subatomic particles
    are the only things that can escape a black hole

  • Going through a black hole without dying is the the closest anyone can get to Time Travel

  • Very helpful, though i think that some of the video footage was very…… unrealsitic.

  • every thing is 4 a reason .denial leads no where

  • What if our universe is bacteria on a bathroom floor

  • 과학자야.영원히지나도인간.운에는.안보인다.보이는.것은.모양과.색깔.두가지만.보인다.영원히.지나도.살아.움직이는.것은.육안으로.안보인다

  • Otaku's be like "its blackhole-chan"

  • Quran discussed black hole 1,400 years ago .there is a whole chapter called Surah An-Najm (The Star) and its first verse states: “By the star when it falls.”

  • BLACK HOLES IN SPACE IN 1400yr OLD BOOK

    –Chapter 81, verse 15-18
    So verily, I swear by the stars that are veiled(Have blackness/hidden from our eyes). And by the sweeping stars that move swiftly and hide themselves. And by the night as it departs; And by the dawn as it brightens.

    The holy Quran mentions the black holes by its very specific characteristics, these are :
    1 – They are running stars.
    2 – They are veiled or receded.
    3 – They are sweeping stars.
    4 – They are dark as night and at same time bright as day.

    –Chapter 56, verse 75-77
    Then I(God) swear by the places where stars fall/drop. And indeed, this is a great evidence if/when you will know. That this Quran is a very noble book(Sayings of God, signs for those who read & Research).

    1-The place where stars.

  • Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa??????????????????

  • Space facts makes me depressed and inspired at the same time.

  • Give some more information about black hole

  • Atomic Bomb: Now I am become Death, the Destroyer of Worlds.

    Black Hole: That's adorable.

  • I am so crazy!!!

  • When will the asteroids hit the earth?

  • Black holes are real wow

  • BLACK HOLES IN SPACE IN 1400yr OLD BOOK

    –Chapter 81, verse 15-18
    So verily, I swear by the stars that are veiled(Have blackness/hidden from our eyes). And by the sweeping stars that move swiftly and hide themselves. And by the night as it departs; And by the dawn as it brightens.

    The holy Quran mentions the black holes by its very specific characteristics, these are :
    1 – They are running stars.
    2 – They are veiled or receded.
    3 – They are sweeping stars.
    4 – They are dark as night and at same time bright as day.

    –Chapter 56, verse 75-77
    Then I(God) swear by the places where stars fall/drop. And indeed, this is a great evidence if/when you will know. That this Quran is a very noble book(Sayings of God, signs for those who read & Research).

    1-The place where stars drop.

  • There's No need to panic, Black Holes are basically Small

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