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thequestioner
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how long do black holes last before they vaporize?
Are the formula for the time that it takes for a BH to evaporate and for an object of same mass to gravitationally collapse alike ,
Chronos said:It takes a very long time. In fact, it will take way longer than the age of the universe before any black hole of a solar mass or more can actually radiate more energy than it absorbs from the environment.
Naty1 said:The evaporation time of a black hole and the time of 'collapse' of mass are not related. Most mass is not dense enough to 'collapse'...but before the end of the universe most mass may be consumed by black holes. In other words, a lot of mass may is likely to be consumed by existing black holes rather than form new black holes.
That is not the case. A black hole is an object whose escape velocity exceeds the speed of light.rcttsoul2 said:This is something I learned today; I always thought that a black hole was actually an extremely large nuclear explosion in progress….
And due to the time dilation of a black hole, it would never come to a conclusion.
The lifespan of a black hole is theoretically infinite. As long as it has a constant supply of matter to consume, it will continue to exist. However, the rate at which it consumes matter will slow down over time, eventually reaching a point where it is no longer actively growing.
Black holes do not technically "die" as they are not living objects. However, they can evaporate over a very long period of time through a process known as Hawking radiation. This process is extremely slow and is only expected to occur for very small black holes.
As mentioned before, black holes can theoretically evaporate over a very long period of time. However, this process is so slow that it is highly unlikely for a black hole to disappear within the lifetime of the universe.
Black holes are formed when a massive star dies and collapses under its own gravity. This collapse causes the star's core to become infinitely dense, creating a singularity which is surrounded by an event horizon. This marks the point of no return for anything that enters the black hole.
Yes, black holes can grow over time as they consume matter. As more matter is pulled into the black hole, its mass and gravitational pull will increase. However, as the black hole grows larger, its rate of growth will slow down until it eventually reaches a point where it is no longer actively consuming matter.