How do black holes help Earth?

Answer 1

Both are the remainders of stars, that is dead - that no longer produce energy. A third type of "dead star" is the white dwarf. What becomes of the star after it dies - a white dwarf, a neutron star, or a black hole - depends on its mass.

Answer 2

We aren't entirely certain how to measure the "size" of a black hole, other than by the mass. Is it the singularity itself? Or the event horizon?

Personally, I suspect that there is a lot going on in there that we currently have no clue about, and that if and when we finally understand it, we'll say "How could we have ever been so foolish?"

Mathmatically, the singularity is a point without a size; just mass. A neutron star is far LESS massive than a black hole, but the physical size is far larger; and the density far less than the "infinite" density of the black hole. (This is why I believe that we don't know everything there is to know about black holes, and that much of what we DO know, we don't yet understand. )

Isaac newton's laws of motion work very well UNTIL you get into the realm of the very small, very large, or very fast. Then you need to add in Einsteinian relativity to make things work.

I suspect that there is some other physical principle that will be needed to modify relativity to understand black holes.

Answer 3

Both have a large mass concentrated in a small space. Both are the result of the collapse of a fairly massive star - although in the case of a black hole, other mechanisms have been considered, too.

Answer 4

Both are remainders of stars, that ran out of fuel. (So are white dwarves.)

Answer 5

Black holes and planets are nothing alike. If the black hole is small enough than its gravitational pull may be the same as earths.

Answer 6

A black hole is so dense and has so much GRAVITATIONAL pull that not even light can escape it

Answer 7

They don't. At least, in no manner that is known.

Answer 8

yes