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Because they can't be seen because they have such a great mass that they don't let light out and can therefore not be seen.

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What will happen to the universe 10 duotrigintillion years from now?

Only black holes and subatomic particles remain. The universe has expanded so much that these individual particles may be separated from each other by truly enormous distances. Black holes themselves are now evaporating by Hawking radiation.


What are facts about black-hole?

Here are some things that are currently unknown. * How do supermassive black holes form? * Are there intermediate-mass black holes? It seems there are, but this isn't very certain yet. * Are there primordial (miniature-size) black holes? These may have formed during the Big Bang, but none have been found yet.


Is it possible for your penis to turn into a black hole?

No. The penis is solid matter, while black holes form from stars, which are molten balls of plasma. Although if you had a truly awesomely epic penis, then perhaps the laws of physics could make an exception...


Why do black holes evaporate?

Black holes can evaporate through a process known as Hawking radiation. This occurs when pairs of particles and antiparticles are created near the event horizon, with one falling into the black hole and the other escaping as radiation. Over time, this leads to a loss of mass and energy from the black hole, causing it to eventually evaporate.


Does black hair really exist?

No black hair does not exist because black hair is just very dark brown hair unless your hair is jet blue that is when it is in the sun it has a tint of blue and your hair looks black in the daytime.

Related Questions

Tell about black holes in space?

Black holes are the greatest mystery.It has the strongest gravitational pull in the universe.Nothing can escape a black hole not even light!Nobody knows what is inside a black hole since light cannot escape it. There are 2 types of black holes.Stellar and super massive black holes.Super massive black holes are found in the middle of every galaxy including our own milky way galaxy.Super massive black holes are 1000x bigger then stellar black holes.Stellar black holes are just regular black holes that can suck up anything.They can be found anywhere in space.Black holes are truly amazing.


What is the relationship between vacuum energy and black holes?

Vacuum energy is a concept in quantum physics that suggests empty space is not truly empty but contains energy. Black holes, on the other hand, are regions in space where gravity is so strong that nothing, not even light, can escape. The relationship between vacuum energy and black holes is complex and not fully understood, but some theories suggest that vacuum energy may play a role in the behavior of black holes, influencing their formation and properties.


What will happen to the universe 10 duotrigintillion years from now?

Only black holes and subatomic particles remain. The universe has expanded so much that these individual particles may be separated from each other by truly enormous distances. Black holes themselves are now evaporating by Hawking radiation.


How do you prove you are a fit mother in Nebraska?

It is the burden of the state to prove you are not. If you truly are and there is no "dirt" you have nothing to worry about.


Do vampires truly exist?

Nope.


Does Hawaii five-O truly exist?

No.


Does anyone ever attempt to ask a ghost what religion truly exist?

there is no known report that anyone has attempted to ask the dead what religion truly exist .


What is a shape that 6 faces and 9 vertices?

it does not exist and please do not delete my answer. it truly does not exist


How do you get a girl to understand that you truly love her?

you tell her and if she doesn't belive you prove it.


Could the theory of dormant black holes truly exist if a black hole isn't sucking in matter that it musnt be rotating if it isn't rotating how could it even exist?

The rotation is not related to the black hole's ability to attract matter. The attraction depends only on the black hole's mass.The rotation is not related to the black hole's ability to attract matter. The attraction depends only on the black hole's mass.The rotation is not related to the black hole's ability to attract matter. The attraction depends only on the black hole's mass.The rotation is not related to the black hole's ability to attract matter. The attraction depends only on the black hole's mass.


What question can never truly be answered yes?

Does God truly exist? Are you asleep? are you stupid?


What are facts about black-hole?

Here are some things that are currently unknown. * How do supermassive black holes form? * Are there intermediate-mass black holes? It seems there are, but this isn't very certain yet. * Are there primordial (miniature-size) black holes? These may have formed during the Big Bang, but none have been found yet.