Why does a black hole have more gravity than a star?
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Why does a black hole have more gravity than a star?
(Grades K-4) series. A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.
What causes gravity in black hole?
Black holes formed by the collapse of individual stars are relatively small, but incredibly dense. One of these objects packs more than three times the mass of the sun into the diameter of a city. This leads to a crazy amount of gravitational force pulling on objects around the object.
Can a star have more gravity than a black hole?
A neutron star can be at most about three times the mass of the sun, black holes are nearly all larger than that, so the gravitational pull of the black-hole is greater. But if you find a way to make a small black hole, then it would have lower mass and so less gravitational pull, at the same distance.
Why does a black hole have such a high gravity?
A black hole has high gravity because it literally is the result of the gravitational collapse of a very massive star (though there can be other processes involved). Anything with mass produces gravity, and the more mass, the stronger the gravitational pull.
What happens when a star is sucked into a black hole?
The black hole is surrounded by a ring of dust. When a star passes close enough to be swallowed by a black hole, the stellar material is stretched and compressed as it is pulled in, releasing an enormous amount of energy. Image credit: NASA/JPL-Caltech 5. What would happen if you fell into a black hole? It certainly wouldn’t be good!
How big is the mass of a stellar black hole?
The mass of a stellar black hole can be up to 20 times greater than the mass of the sun but it may be only about 10 kilometers across in size!. By the way, there is evidence to show that several stellar mass black holes exist within the Milky Way galaxy.
What is the relationship between black holes and galaxies?
On a larger scale, most galaxies seem to have supermassive black holes at their centers. The connection between the formation of these supermassive black holes and the formation of galaxies is still not understood. It is possible that a black hole could have played a role in the formation of our Milky Way galaxy.