What would happen if two black holes collided?

Answer 1

I hear the theories of one would swallow the other but that shouldn't happen as the black hole would still be a black hole in a black hole, so in the centre of the black hole, you would have another black hole which would infinetly suck each other in as there is no evidence of a black hole dying.

Answer 2

I am sure I have answered this one before but the system seems to have lost it.
There is no reason to believe that the can collide. The maths breaks down so it is impossible to say how big a black hole is but is is consistent with a point so they are just too small to actually collide. Don't confuse the black hole with the event horizon, that is just a mathematical surface where the escape velocity happens to equal the speed of light, there is nothing physically there.
If 2 black holes fall towards each other on a hyperbolic orbit they will pass at an impressive speed then separate again. The only exception is if they loose enough energy (presumably via gravitational radiation) to end up in orbit. In this case the orbit would very slowly decay and presumabaly they would eventually merge. I have not done the maths but I would be surprised if they loose enough energy to go into orbit so the answer to your question is that they cannot collide.

Answer 3

Black hole collision is the subject of many physics publications. One would absorb the other. It's already theorized that the centers of galaxies contain black holes with millions of solar masses, most likely a collection of black holes that have collided. A lot of exotic energy would be released in the merger. It's an interesting thing to speculate about, especially since if one black hole loses enough mass to the other black hole, it would explode. Haven't ever detected one of those yet. Still, look at the huge amount of energy released into space when a black hole strips the star stuff off a star that got too close and absorbs it. Collosal release of energy in the form of gamma rays, x-rays, cosmic rays, you name it.

Answer 4

You'd just get a single hugely powerful black hole. All a black hole is, is an immensley dense ball of material, the result of a collapsing star. The material is so dense and heavy that it exerts an enormous amount of gravity... so much that it sucks in everything, including light (why it's called a 'black' hole... you can't see it because no light can reflect off it).

Thus, if two came near each other, they'd suck each other closer to form one incredibly powerful black hole. The chances of it every happening are infinitesimal, however... as you need certain types of stars to form black holes, and stars are thousands of light years apart.

Nothing to worry about.

Answer 5

If two combined, they'd just form a supermassive blackhole. The singularity would be where the centers of the two black holes collided at.

The event horizon would expand. Nothing would really happen to spacetime, because both blackholes centered at spacetime have holes in them anyway, so the fabric of spacetime isn't affected greatly in terms of "rippage."

Answer 6

It is more likely that they would go into orbit around each other, the resulting gravitational forces creating a super-galaxy similar in shape to the sombrero galaxy. This may happen in a few billion years, when the black hole in the center of the andromeda galaxy approaches the black hole in the center of our own milky way galaxy.

Answer 7

The Black hole who's fault it was would have to pick up the Insurance bill for the repairs. Unless the damage was less than the automatic Excess Fee in which case they would probably just pay for it so as not to lose their No Claims...

Answer 8

Joan Collins

Answer 9

It would change time and space as we know it and send us all back to the time of Disco - play that funky music white boy.. Okay, back to reality it would just make a bigger black hole that's according to popular theory.

Answer 10

Nothing would happen! It would just make a massive black hole.And that would be a big black hole!