What the heck are black holes?

Question

What are black holes, as in, those weird suck-every-thing-up gravity things?

Answer 1

Well, you got the fairly detailed answer that was quoted from wikipedia. When the fusion energy of a star runs out, the expansive force of the star is reduced and as it cools down, the gravitational (attractive) force starts pulling the matter towards the center and as the matter starts collapsing on itself, some strange things start happening. It may reach a very high temperature and explode (A Supenova), it may become a neutron star or it may become a black hole where the matter attains a density close to infinity. But that doesn't mean that the blackhole will have infinite mass. Within an event horizon, the matter and light cannot escape, but as the matter outside gets accelerated towards the black hole, it starts emitting radiation and that can be sensed.

What happens to all the matter that is being sucked into the black hole? We really don't know but there is a conjencture that the matter is spewed out through a white worm, and that for every black hole, a correspondign white worm has to exist. It is also conjectured that black holes are gateways to another universe. No way of knowing right now.

Answer 2

A black hole is an object predicted by general relativity,[1] with a gravitational field so powerful that even electromagnetic radiation (such as light) cannot escape its pull.[2]

A black hole is defined to be a region of space-time where escape to the outside universe is impossible. The outer boundary of this region is called the event horizon. Nothing can move from inside the event horizon to the outside, even briefly, due to the extreme gravitational field existing within the region. For the same reason, observers outside the event horizon cannot see any events which may be happening within the event horizon; thus any energy being radiated or events happening within the region are forever unable to be seen or detected from outside. Within the black hole is a singularity, an anomalous place where matter is compressed to the degree that the known laws of physics no longer apply to it.

Theoretically, a black hole can be any size. Astrophysicists expect to find black holes with masses ranging between roughly the mass of the Sun ("stellar-mass" black holes) to many millions of times the mass of the Sun (supermassive black holes).

The existence of black holes in the universe is well supported by astronomical observation, particularly from studying X-ray emission from X-ray binaries and active galactic nuclei. It has also been hypothesized that black holes radiate an undetectably small amount of energy due to quantum mechanical effects. This is called Hawking radiation.

Answer 3

Black holes are basically theory, but there is enough indirect evidence that says the exist, but nothing really comes out and says it directly. Black holes are infinite in mass and have such a strong gravitational pull, that not even light can escape them. It is believed that there is a supper massive black hole in the center of all galaxies, even our own. In the center of black holes, there is a point called singularity. Singularity is the point that has infinite mass but no height, width or depth. This is a lot of scattered information, but if you want to no more, go to wikipedia.com and type in black holes.

Answer 4

black holes are muon congregations with out electron's to push mass energy away, like if you took the covering off of a soft ball and put the cores in a bucket, they would have more weight per volume. Real black holes theoretically exist because muons have been stripped of their individuality of atomic dimension and become a nucleic dimension . the consistant pressure causes anything that aproaches the black hole to become involved in the muon group hug.
that should help,p.s. it's interesting to study water because it has some similar charecteristics to theoretical black holes

Answer 5

Basicly, you can say a black hole is any object where the escape velocity if greater than the speed of light. . .

Answer 6

balck holes are places in space that are crated when stars die and collapse on themselves. this creates a "hole" with so much density that even light cannot escape its gravity, hence it is black because there is absoutely no light there.

Answer 7

Black holes are dark holes made of matter that can suck in everything, break down its particles, and destroy it.

Answer 8

I think that black holes are essentially gravity wells, or gravitational sinkholes. We may never know...

Answer 9

difficult stuff. query into search engines like google. it could help!