Now technically it would depend on how close the black hole was to say a cluster of stars, if it was in the center of millions of stars and was about 1 star or more in diameter it would suck them all up! but otherwise no one knows considering we have only searched about 1 millionth of the night sky!
We don't know how long black holes last, but we do know that the glow seen from outside a black hole carries energy and decreases the black holes mass; eventually destroying the black hole.
It depends on many factors: size of the star and the rate at which the black hole would devour the star i.e. tons per second...,
Assuming the star being "eaten" is about the Sun's size: 2 octillion tons (2x1027 )and also assuming the black hole "eats" at the rate: 1 trillion ton per second (1012 )
Then it would take 2X1015 seconds or 555,555,555,555 hours or 23,148,148,148 days or 63,419,584 years, about the time when dinosaurs went extincted to today (21st century).
If the black hole "eats" faster then it would take less time or if the star is bigger than the Sun then it would take longer, vice versa.
You got the picture.
Not sure what you mean by a "dead" star, but it takes a matter of seconds for a star, large enough to end up as a black hole, to undergo the core collapse that we see as a Type II supernova. In other words, a "dying" star turns into a black hole rather rapidly.
If a star instead ends up as a white dwarf, it will take trillions of years, if not longer, for that star to end up as a black dwarf -- which is VERY different from a black hole. The only thing these two objects have in common is the word "black."
When a supernova explodes, if it is powerful enough, the core of the star is crushed under unimaginable pressure to a density so high that even the nuclear pressure that keeps neutrons from squashing together is overcome, and the mass becomes a point - the mass of a star crushed into something smaller than a grain of sand. We really don't understand what process takes place, but our math indicates that it takes essentially no time at all to happen.
Depending on the mass of the black hole and the mass of the star, anything from thousands to millions of years.
10^15 years for a regulary Black Hole
10^ 28 years for a mini Black Hole
10^5 years for a super black hole
Once a star is a black hole, it can never change.
Basically there is no "next stage". Well, it is believed that a black hole will evaporate, but that will take a long, long time.
You can't, if you call it in the black hole being inside the event horizon; that is if you mean inside the 'black' portion of the hole. If you say near the black hole, then it depends on how close and how much thrust, fuel and mass your ship has.
Scientists cannot be certain, as we have yet to experiment with a black hole, but they theorize that time would slow down relative to time far from the black hole.
No. The gravitational forces are so great that your body would be ripped apart long before you actually entered the black hole.
I don't think you could talk about a "day" on a black hole - for a start, nobody could survive in a black hole, to observe such a day. But if you refer to the rotation, one black hole has been observed that seems to spin over a thousand times per second. This rotation, of course, can be different for other black holes.
If a black hole has spin, it will spin forever.
No one knows till now but scientists believe that there can be a black hole in the centre of the Universe.
Basically there is no "next stage". Well, it is believed that a black hole will evaporate, but that will take a long, long time.
You can't, if you call it in the black hole being inside the event horizon; that is if you mean inside the 'black' portion of the hole. If you say near the black hole, then it depends on how close and how much thrust, fuel and mass your ship has.
The sun should not become a black hole. It does not have sufficient mass to undergo the necessary collapse.
It lasts until evaporated.
By building a machine that travels through space (like a rocket), and fly it against the direction of the Black Hole. For as long as the thrust of your rocket is above the gravitational pull of the Black Hole, you are away.
No human has ever come near a black hole. If one did, the intense gravitational pull of the black hole would pull them in and tear them to atoms, long before they reached the event horizon.
Scientists cannot be certain, as we have yet to experiment with a black hole, but they theorize that time would slow down relative to time far from the black hole.
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.
If you jumped into an "ordinary" Schwarzschild black hole, you would be crushed into a long line of particles, which means death by a black hole. If you jumped into a Kerr black hole, the same process may occur, but the only thing different is that a Kerr black hole spins, and a Schwarzschild black hole does not. That answer needs a bit more detail. Please use the "related link" below.
No. The gravitational forces are so great that your body would be ripped apart long before you actually entered the black hole.