How are black holes created?

Most detailed answer wins


1|0
8|21

Most Helpful Guy

  • Stellar black holes form when the center of a very massive star collapses in upon itself. This collapse also causes a supernova, or an exploding star, that blasts part of the star into space. Scientists think super-massive black holes formed at the same time as the galaxy they are in. - Google

    1|0
    0|0
    • Thank you so much

      I'd like to thank girls ask guys for creating the site
      And you for the award.

      And the academy

      Thank you so much God bless and goodnight

      Oscar late music in the background lol

Most Helpful Girl

What Guys Said 20

  • Forms when a star has expended all it's usable elements and thus all it's energy expenditure, making it unable to sustain itself and thus collapse on itself. Although technically it shouldn't exist as it does because it's quantified as a infinitely small point in space which contains a large percentage of the mass of the star it originally was (minus the energy that left during fission of elements, and jettisoned energy after fission).

    Interesting facts: Black holes cause a specific trait called gravitational lensing - essentially allowing the viewer to see behind the black hole, through a slightly warped visual space. This is due to a NEGATIVE index of refraction - the same principle that causes meta-materials and invisibility cloaks (yes there is a thing called an invisibility cloak, yes it's real, yes it allows you to see objects behind it) operate on.

    https://en.wikipedia.org/wiki/Gravitational_lens
    https://en.wikipedia.org/wiki/Metamaterial
    en.wikipedia.org/wiki/Metamaterial_cloaking
    https://en.wikipedia.org/wiki/Cloaking_device

    Also, they can preserve a state of data for an near infinite if not infinite period of time at the event horizon, while the original object would be destroyed once it passes through the event horizon the "image" of the object would forever appear there as would it's state at the exact point of meeting the event horizon.

    1|2
    0|0
  • Black holes are formed at the death of a star of large mass. A star undergoes fusion which is the process of elements being combined into larger elements. So the element hydrogen is the most common in stars and it fuses into helium. It then fuses into higher order elements eventually forming gold and other elements. Fusion happens due to the intense heat and pressure caused by gravity of such a large ball of mass. So over the star's life fusion causes the elements to form larger elements. In doing so it has become denser since the protons and neutrons of the nucleus of the atoms has become fused and closer together so hence being more dense. So the atoms keep getting fused together and denser and and denser. This causes the star to reduce in size and increase its mass inside the space its in. This can become unstable so sometimes the star will increase in size and decrease in size over its lifetime. But once the core of the star becomes really dense and the gravity becomes enormous the star can implode in on itself forming a black hole. This only happens if the star has a large enough mass. If its say a smaller star with relatively low mass like our sun then it can form other objects such as dwarf stars or explosion events such as supernovas.

    So black holes aren't actually holes but a ball of intense mass and hence gravity. But there is still a lot more research to be done. Black holes can come in different sizes since the gravity will pull in objects around it and increase the mass of the black hole. The gravity is so intense that it bends the fabric of space-time and can even pull in light. Thats why it is black and you can't see it. However even though you can't see it you can still see objects that might be pulled in by its gravity. So if you see the objects being pulled into the black hole you can identify where the black hole is. Black holes are usually located at the centre of galaxies. This is bc the intense gravity will pull in on objects and the objects will orbit around the black hole. Black holes can pull in other black holes and form larger super black holes. Anyway it still has a lot of mystery behind it and as to how exactly the physics work.

    1|0
    0|0
  • A black hole can be created anywhere. Even right here on planet earth.

    Its when you take a extremely heavy object (usually stars) and compress them so small. For comparison earth would have to be compressed to the size of a normal mountain and a star would have to be compressed to the size of planet earth. When that happens you get immense energy and the fabric of space time actually collapse into itself, creating a black hole. So if you have the power to compress your house into the size of a nucleus of a atom for example, you would create a mini black hole right here. But be careful, that black hole will grow in size as it consumes everything in its path including light and space itself. Space is actually where 3D objects exist im, they would become stretched like a bad nightmare

    The equations of a black hole indicates there could be tunnel pathways to other parts of the universe. Or adjusted equations can indicate through each black hole there is a big bang, so imagine the sheer size of an infinite loop of hole through hole through hole through hole of big bangs.

    The singularity can be proved by 'The Kretschmann invariant'

    Good luck, your going to need it

    1|0
    0|0
  • As a star grows old, swells, then collapses on itself, often you will hear the word “black hole” thrown around. The black hole is a gravitationally collapsed mass, from which no light, matter, or signal of any kind can escape. These exotic objects have captured our imagination ever since they were predicted by Einstein's Theory of General Relativity in 1915.

    So what exactly is a black hole? A black hole is what remains when a massive star dies. Not every star will become a black hole, only a select few with extremely large masses. In order to have the ability to become a black hole, a star will have to have about 20 times the mass of our Sun (Steinberg “Black Holes: Science Background”. No known process currently active in the universe can form black holes of less than stellar mass. This is because all present black hole formation is through gravitational collapse, and the smallest mass which can collapse to form a black hole produces a hole approximately 1.5-3.0 times the mass of the sun (the Tolman-Oppenheimer-Volkoff limit). Smaller masses collapse to form white dwarf stars or neutron stars.

    Because these stars are so massive and made out of gas, there is an intense gravitational field that is always trying to collapse the star. The fusion reactions happening in the core are like a giant fusion bomb that is trying to explode the star. The balance between the gravitational forces and the explosive forces is what defines the size of the star. As the star dies, the reaction stops due to the lack of fuel for the reactions. Immediately after the reactions cease, the gravity of the star pulls everything towards each other, and compresses the core. As the core compresses, so does the temperature of the star. Once the star becomes so compact and reaches a critical mass, it causes an explosion called a supernova in which the material and radiation shoot every direction into space. What remains of this explosion is an extremely dense core. The mass of the core must be roughly 2.5 solar masses ( 1 solar mass = mass of Sun = 1.9891 x 10^30 kg) in order to become a stable black hole. Anything less and the core is most likely going to become a neutron star.

    Because the core's gravity is so strong, the core sinks through the fabric of space-time, creating a hole in space-time. With a gravitational force this strong, nothing, not even light, can escape the gravitational pull. This is why the object is called a black hole.

    1|0
    0|0
    • But if we cannot see black holes, how do we know they actually exist? We can detect the presence of a black hole, from its interaction with a star close by. Many stars form in pairs or clusters. If one star in this cluster becomes a black hole, it does not necessarily affect its companion stars unless it comes to close to another star. The strong gravitational pull of the black hole will actually pull matter off of the star that is nearby in large streams. These streams of star matter heat up as they being to circle the black hole and close in on the point of singularity. We can see disks formed, which we call “accretion disks.” Perpendicular to the plane of the disks, coming from the black hole are jets of matter and radiation. From the heat and motion of these disks, and the radiation from the jets, we can conclude the presence of a black hole. As the black hole pulls in the gas and heats it up from another sun, the extreme temperature beings to admit x-rays.

    • Show All
    • Conclusion

      As our research on black holes increases, so will our knowledge on Einstein’s Theory of General Relativity. In addition, confirmation that they exist will strengthen confidence in current models of cosmic evolution, from the Big Bang to the present universe. Using the limitless gravitational pull of a black hole, we can being to further increase our knowledge on the basis of gravity.

  • Stellar black holes form when the center of a very massive star collapses in upon itself. This collapse also causes a supernova, or an exploding star, that blasts part of the star into space. Scientists think supermassive black holes formed at the same time as the galaxy they are in.

    1|2
    0|0
  • People already wrote everything that needs mentioning and I'm not after MHO
    so I'll just add, "imploding stars"

    1|0
    0|0
  • watch a youtube video. why would the most detailed answer wins when you can say it in 2 sentences? anyways, it's when a star's gravity becomes so immense and dense that it collapses into itself
    https://www.youtube.com/watch?v=pvAsDIP_ccQ

    1|0
    0|0
  • when stars explode the cores can form black holes, essentially really strong vacuums

    1|0
    0|0
  • I think it has something to do with when a massive star burns itself out and then collapses in on itself, becoming so massive that it warps space/time and disappears across something called the event horizon.

    1|0
    0|0
  • When there is enough matter to generate the gravity needed to pull even light to that point, while lacking the outward pressure to prevent the matter from collapsing in, we call that a black whole.

    They can happen from multiple causes. A very large star at the end of its life loses outward pressure when it runs out of fuel and can create a black whole on its own when it collapses in on itself.

    They can be caused by star collisions as well.

    1|0
    0|0
  • Happens whenever my ex opens her stupid mouth.

    1|3
    0|0
  • An imploded star basically that keeps its mass but now very small and gravity so strong in the area it was that even light can't pass through so it looks like an empty spot in space

    1|0
    0|0
  • With my fist

    1|0
    0|0
  • When a star dies, it's volume shrinks while keeping the mass giving it a high density. That density is what creates gravitational pull. That is strong enough to keep photons from escaping.
    Fun fact: the brightest parts of our galaxy are black holes, light can't escape but isn't destroyed, so the black hole has tons of stars inside of it.

    1|0
    0|0
  • Usually it happens when a massive star runs out of light elements to fuse and collapses on itself. It can also happen when massive stars collide or when massive stars eat up enough foreign material.

    1|0
    0|0
    • All that needs to happen is that enough mass needs to be in the same small area that it's gravity is powerful enough to overpower light.

    • It's likely that supermassive black holes in the centers of galaxies are just many black holes that merged together towards the center of the galaxy (where the most matter logically is) while also feeding on stars and stellar dust

  • A huge huge star collapses, and the gravitational matter is too strong so it begins pulling in everything.

    I coukd give a better description but i haven't really read on astronomy in a while

    1|0
    0|0
  • when a star collapses in on itself becomes a black hole

    1|0
    0|0
  • Black holes are created when extremely dense matter sinks into a platform of the gravitational grid because of the overwhelming mass to size ratio. In other words, drop a blowing ball into your neighbor's pool while the cover is on.

    1|0
    0|0
    • Some people explained how the matter becomes dense, but theoretically any matter as dense could recreate the same condition.

  • For ever broken heart a black hole is made until someone comes and fixes it.

    1|0
    0|0
  • Dead stars or something I think...

    1|0
    0|0

What Girls Said 7

Loading...