The pressure within a protostar counters gravity and prevents the star from collapsing further.
The mass of the progenitor star has to be massive to form a black hole and thus it will have a shorter time on the main sequence compared to a medium sized star.
sadly from what i have seen it doesnt but i hope it does soon
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
A protostar is the first building block of the main star. As it has not yet accumulated enough mass to join the main sequence, it will be smaller than the main star. The next stage will be a T Tauri star.
they trun into a black hole
No
There aree black wholess formedd in spacee alreadyy.
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.