There aree black wholess formedd in spacee alreadyy.
They will merge to form a single black hole with the combined mass of the town that merged.
The sun's energy has not formed a black hole.
No, one cubic light year of water would not form a black hole because the mass of the water would not be dense enough to collapse into a black hole. The density of water is much lower than what is required for a black hole to form.
A black hole is formed when a star or other large body collapses on itself.
black hole
they trun into a black hole
No
No. The sun does not have enough mass to form a black hole. A black hole does not lead to another galaxy. Anything pulled into a black hole becomes part of that black hole's mass. Even then, if Earth were to fall into a black hole the same mass as the sun it would be torn apart by tidal forces long before it crossed the event horizon.
Particles falling into a black hole release a large amount of x-rays as they do so. This is not energy from the black hole itself, but energy release that is a sign of a black hole.
When two black holes get close enough together, they might merge, to form a larger black hole.
Yes, there are. Most large galaxies, for example the Andromeda Galaxy or our own Milky way, have a supergiant black hole at their core. Now, in the arms of our galaxies there are thousands of black holes. So, yes, black holes do exist in galaxies. Theoretically, a black hole cannot form outside of a galaxy, because to form a black hole you require either one or two superstars, and superstars do not form outside of a galaxy or a cluster of stars.
after a neutron star collapses on itself