Black Holes 101 | National Geographic

By | August 13, 2019
100 Comments


(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.

100 thoughts on “Black Holes 101 | National Geographic”

  1. National Geographic Post author

    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?

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  3. Robin Lundqvist Post author

    we actually call them african-american holes now, racists…

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  4. mohamed Ismail Post author

    Large amount of protocol πŸ‘¨β€πŸ‘¨β€πŸ‘§β€πŸ‘¦

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  8. Maksym Vlasov Post author

    "Infinitely small, infinitely dense" – this is not about gravitational singularity at all! Black holes have size, sometimes huge. Super massive black holes have density close to water

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  9. Tyrone Jone Arroyo Post author

    Question:
    How do quasars escape from the center of a black hole?

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  10. Just a Pucker Post author

    The existence of these extreme objects are so inspiring

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  11. sri ganesh Post author

    What if all these galaxies are just like atoms forming something ,if u look at the black hole being at the centre of our galaxy ,just like neutron

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  13. Zulu Kaygee Post author

    You did explain what is a black whole but to this date I so tolally don't understand what is it, how it is formed and what is the importance of it in the universe 🌌

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  14. AmΓ³s Batista Post author

    😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱😱

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  16. Marsh_Girl Post author

    THEY ARE TALKING ABIUT ME WAHHHHHHHHHHHHH MY EYES ARE BLACK WAHHHHHH

    btw my eyes are brown πŸ™ƒ

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  17. Jerry Ferrer Post author

    Need this black hole history for exam this valentines month πŸ’ž

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  18. TooSilver Post author

    At around 30 ssecondsof this video is a little misleading. Black holes are not actual holes πŸ•³ but spherically shaped. Its a common misconception

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  19. lxcheckMEoutxl Post author

    Last night, my friend told me that he just encountered a black hole. He said it was so tight!

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  20. Christian Lim Post author

    Most overrated black hole phrase

    "NOT EVEN LIGHT CAN ESCAPE"

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  22. Master Of Epic Post author

    I wonder what would happen if an human actually went in the black hole

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  28. Mikaela Vianca Molina Post author

    I'm just curious, when we try to send a satellite to study or observe a black hole, will it survive? Or will it be destroyed by its immense gravitational force? And can we possibly develop a strong satellite to be able to withstand this immense gravitational force?

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  29. ImYourDaddy DontForgetit Post author

    No one has ever seen a black hole , just sound waves

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  30. moises ramirez Post author

    if a blackhole can defy the speed of light, than there is something faster than the speed of light… or is there?

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  31. bluedasher74 Post author

    I still don't understand WHAT they are. Are they an actual hole? Or are they just the core of a former star?

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  32. satnamo Post author

    Pierre-Simon marquis de Laplace is the first mathematician to postulate the existence of black holes and the notion of gravitational collapse.

    The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarzschild in 1916.

    Fred Lo was close enough to announcing that the Milky Way contained a black hole in 1971.

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  33. Chu Myat Sandi UNICORN & STARS Post author

    If the sun die, will there be a black hole of the sun?

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  34. Yekuu JeonPark.1 Post author

    I wanna to space and search for a black and go there like I don't care

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  35. Rina Miku Post author

    Ok I l am a big fan of the universe and Black Holes : )

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  37. Doll Face Post author

    It's amazing how something so infinitely small is harder to picture that something infinitely big.

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  38. Pinky John Post author

    Why did you not mention Stephen Hawking without him we could never understand black hole

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  39. Mittens Post author

    One of the rare times when a lack of music actually adds to the experience. Nice touch!

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  41. Ikinararangal ko ako'y Iglesia ni Cristo Post author

    But Blackhole is just a theory and no 100% percent evidence.

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  43. Pew Brad Post author

    "Collapses into the Black Hole singularity an infinitely small and infinitely dense where Space, Time, and Laws of Physics no longer apply".
    Does it mean that there is room for time travel?

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  44. Narayanarao Amudala Narayanarao Post author

    Yes's what I found right now There is no god in the world That is just human imagination….. Who is believe this 😎

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  45. DEEPEST Post author

    Got myself thinking whether a black hole, infinitely compressing all matter that enters it, has an exit somewhere where deconstructed matter is emitted back into deep space as molecular particles, slowly collecting back together and recycling the universe.

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  47. Nathan Lovatt Post author

    Born to late to explore the earth born to early to explore the universe

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  48. Samir Raut Post author

    Our mother Earth has 1 black hole in her abdomen…Bermuda Triangle !

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  52. HydBadBoy 90 Post author

    I’m here after seeing the first black hole’s captured image and still don’t know what it really is!

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  53. cold play Post author

    And now , the picture of one has been taken! milestone!

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  55. AJ Post author

    WE KNOW HOW BLACK HOLES LOOK LIKE 2019 OMG DELETE THIS

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  56. ane qaiser Post author

    And now we have found the first ever picture of black hole….Amazing achievement :-):-):-)

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  57. FBI Post author

    Black holes are infinite right? We have a place to throw all the Flat-Earth believers.

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  58. Rajib Kumar Singh Post author

    So basically black hole is like a very bag or bag like thing which will one day get filled but nobody knows when .

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  60. Vibrontech X Post author

    Black holes I guess are the origin of all galaxies in the universe. That's the early stage of the formation of galaxies.

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  64. Aung Hlaing Win Post author

    They just found the picture of black hole in M87

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  65. Mc Opular Post author

    pretty sure there's 20 black holes in our galaxy

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  66. p Fuze_ Post author

    Just hearing that black holes are invisible is scary.

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  67. Cloyie DS Post author

    who's here because of the 1st image of black hole?

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  69. Roberts Strods Post author

    Why dose she sound so tired and sick at 2:40

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  70. yassine achagui Post author

    Who is here after the image was captured ?

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  71. gil koronel Post author

    BLACKHOLE ARE CAME FROM THE BIRTH OF QUASAR AND THAT IS A GIANT TRANFARRENT GRAVITY NOT A MATTER THE PLANET ARE CAME FROM THE BIRTH OF THE SUN CALLED SMALL BLACKHOLE ALSO LIFE ARE CAME FROM THE GRAVITY INSIDE THE PLANET CALLED TINY GRAVITY

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  72. Kalpasree Banerjee Post author

    Who's here after the first black hole image???

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  73. Ariel Espinile Post author

    Mas maganda kung gagawa nalang sila ng anumang gadget na makakaya nila at itatapun doon sa blackhole, kung anutalaga ang meron sa loob nang blackhole. Pag papasuk doon ang inbento nila tiyakapa bubuksan yong gadget namay miron camer, at doon na nila makikita kung anung miron sa loob nang blackhole. Ang dami naman nagagawa dito sa mundo ng earth ng mga gadget na nagawa. Pursige lang yan para makita yung katutuhanan kung anung miron talaga sa loob ng blackhole

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  74. Andrew Smithy Post author

    you wouldn't want to stick your wang in one……..

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  75. sarfraj ahmad Post author

    Why quasar come out from black hole.. Even nothing will come out from black hole?? What's the reason????

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  76. ACupOfTae WithSuga Post author

    My stomach (and mouth) is a fricking black hole that it eats all food that I see everywhere

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  77. Sajayan K S Post author

    Big bang may be an expansion from another dimension in to our dimension

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  78. Sajayan K S Post author

    Different dimensions may be co existing with out intracting each other and somehow matter and energy leked to our dimension as big bang expansion. Chance is that our expanding universe is just a return of that matter and energy back to that dimension.( Imagination only)

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  79. genesis info Post author

    Can take pictures so far (Black Holes) …

    But the pictures of Mars or other planets can not look better

    Is this true at all?

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  82. Nuwan Hearath Post author

    These are very interesting. people can get knowledge form these. I like to know about these things thanks for the video.

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  83. MOSTWANTED_TIAUNA TT Post author

    Its all fake and the black hole picture bc the real black hole picture came out after this and that’s not it your just tryna get credit but really you lied and it won’t get the sun or earth it’s far away

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  84. that one bayu Post author

    The illustrations are not decently accurate. Why not ask the animators for revision? Or does NatGeo not has astronomer to ask advice from?

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  85. Kent Lagudas Post author

    You said that star dies it will create black hole. The question is what about the big bang theory when it exploded there's a black hole? If there's a black hole it may be the largest? I think black hole is older than big bang look at the universe its completely dark when the star collapse and the most important how that star created if the particles are form when after it collapse? I am Filipino and so curios how universe started

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  89. drive 95 Post author

    1:42 "Because black holes are invisible", now we have pictures of black hole

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  91. Fatkhur Makalah Post author

    I thought that was a horror movie… for a galaxy

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  92. Linda Post author

    After watching past 0:37, the video reminded me of how little we actually know about the universe

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  93. αž”αž„ αž–αŸ… Post author

    Black hole αžœαžΆαž‡αžΆαž…αžΆαž”αŸ‹αž•αŸ’αžαŸαžΈαž˜αž“αŸƒαž€αžΆαžšαž€αž€αŸαžΈαž αž“αŸƒαž—αž– αžŠαžΌαž…αž€αžΆαžšαž€αž€αŸαžΈαžαž“αŸƒ αž‡αžΈαžœαž·αžαž˜αž“αž»αžŸαŸ’αžŸαž€αŸ’αž“αž»αž„αž–αŸ„αŸ‡ αž˜αž·αž“αžαž»αžŸαž‚αŸ’αž“αžΆαž‘αŸαžΈαž™

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  94. kylie Lax Post author

    You can create a black hole here on earth! Simply squeeze mt. Everest into the size of a penny…

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  96. ζ–Ήζ΄₯ζ΄₯ Post author

    唉!ζ²’ε­Έζ­·ζ²’ηŸ₯θ­˜ηš„ζˆ‘'ηœ‹δΈζ‡‚ζ‚¨θ²Όζ–‡ηš„ζ„ζ€εͺε₯½ι»―η„Άι€€ε‡Ίθ‡‰ζ›Έε°ζ‚¨ηš„θΏ½θΈͺ!SORRY!

    Reply ↓
  100. Nexx Lazzo Post author

    Light: i have no mass, and im fast as f*** boii.

    Black holes: (drakely) oohh woooow…

    Reply ↓

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