Originally posted by nineball2000It's called gravitation.
science channel said we are being pulled a inch every year to a black hole 🙄crazy one day we wil be smashed like a fly
The gravitation of the earth itself kills a lot of people, and it does this at this very moment.
Why should we be afraid of the gravity of distant black holes?
Originally posted by nineball2000There's one at the centre of every galaxy, including ours.
science channel said we are being pulled a inch every year to a black hole 🙄crazy one day we wil be smashed like a fly
But we'll never reach it, since the earth will have vanished long before then.
Originally posted by BowmannI'm not so sure of that, I'm afraid.
There's one at the centre of every galaxy, including ours.
I think a galaxy have to be big enough for having a Black Hole. Small galaxies, like the Magellanic clouds, I don't think they have a Black hole in its 'center'.
Originally posted by FabianFnasThe Magellenic clouds are former galaxies that our milky way galaxy tore apart because the clouds former galaxy was drawn into ours by gravity. Newer work seems to show the center of our galaxy has two, maybe 3 black holes. I speculate the second or third one came from the milky way tearing into the clouds and stealing their black hole, they are very close together now at the center of our galaxy. Of course I may be full of shite also🙂
I'm not so sure of that, I'm afraid.
I think a galaxy have to be big enough for having a Black Hole. Small galaxies, like the Magellanic clouds, I don't think they have a Black hole in its 'center'.
We have to be careful here...
As long as galaxies, small or large, has stars of sufficient mass, then, eventually, the stars goes into Black Hole stage. Therefore, galaxies of various sizes has Black Holes.
But one theory says that galaxies is started as a Black Hole from an early epoch of universe evolution. Black Holes forms galaxies. Only later when the star generating processes, as we see them now, Black Holes are randomly created throughout galaxies. But the Black Hole in the middle of large galaxies remains and are growing.
Even the Magellanic clouds do have Black Holes, but those were not created from the beginning, but of ordinary stellar evolution.
If a galaxy is large enough, (and is of a spiral or/and a bar type?) it is most probable that it has a Black Hole in the center. So is this theory. But I don't know if it has been proven by observation yet.