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There are spectacular differences between black holes and Earth. Earth is a planet; a black hole is not. Usually black holes are remnants of stellar evolution, created at the end of a star's lifespan when its fuel is exhausted and collapses, producing a region of spacetime where escape velocity is greater than the speed of light; Earth by contrast is believed to have formed from a proto-nebula not (directly) from a star. The escape velocity of Earth is much less than the speed of light, and it lacks sufficient mass to become a black hole. A black hole has a singularity of infinite density; Earth has no such structure and could not approach infinite density. Earth reflects light, a black hole does not. The Earth's gravitaional radius is much smaller than its Schwarzschild radius; a black hole's is equal (or larger). Black holes evidence a type of matter known notionally as exotic which defies our current physical models; Earth's does not. Black holes bend space sufficiently to have a photon sphere; the Earth cannot have one.. etc.
One coincidental similarity is that much of Earth's matter is a product of a supernova explosion (for example, elements with atomic numbers higher than that of iron); a black hole can also be created by matter associated with supernova explosion.
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What do black holes emit that could allow them to be detected from the earth?
Black holes does emit radiation, but they cannot be detected from earth. We use gravitational lensing to "see" the black holes.
Why the earth is not the center of the milky way?
Earth is a planet. Center's of galaxies sometimes contain black holes. Planets can't be black holes.
How fast can black holes go?
there is no exact answer, different black holes have different speeds, but all black holes can crush 1 tonne of metal into a size of a pebble
Are black holes terrestrial or gas planets or something else?
Black holes are black holes - they are totally different from anything else in the universe. Most black holes are formed from the collapsed cores of dead stars. There are supermassive black holes in most galaxies, but it is no known how they formed.
Are black holes in space?
Yes, that's where they are. A black hole on Earth would utterly destroy the Earth, in a very short time.The existence of black holes is now generally accepted, by the way.
Is there any black-hole on your earth?
No - at least no black holes as defined by physics.
Was the earth formed by black holes scattered throughout the galaxy?
No. Earth was formed by the accretion of material in the protoplanetary disk around the newly formed sun. Black holes were not involved.
Are black holes harmful to earth?
The Earth has never been endangered or harmed by a black hole, and chances are, never will be.
Did people really think of the Earth as a sphere and black holes?
No
Why aren't black holes called worm holes?
there two different things
Are black holes dangerous to people?
Black holes could be dangerous to people if people were close to a black hole, but there are no black holes near the planet Earth (as far as we know) and the closest one is probably in the center of the Milky Way galaxy, which is about 80,000 light years from Earth, which is a safe distance.
Why cant you see black holes from earth?
Black holes emit so very little radiation they are hard to see. Many black holes lie at the center of galaxies and there they are hidden by stars and dust.
