BLACK HOLES
Q1.What Is A Black Hole?
A black hole is a place/region in space where gravity pulls so much that even light can not get out. We know that light is the fastest thing of the universe even known then if light can't able to escape it then nothing can escape it because light is faster then anything we have. The gravity is so strong because all large size of matter has been squeezed into a very tiny space. This can happen when a star is dying.
Because no light can get out from it. So, people can't able to see black holes. They are invisible we can't see them, But we know about them and also we have a real image of a black hole other images are fake and edited. We find them when stars that are very close to black holes act differently than other stars.
Q2.If Black Holes Are Invisible Then How We Know They Are Exists?
A black hole can't be seen because of strong gravity pulls all of the light into the middle of the black hole which is called 'Event Horizon' .But scientists can see how the strong gravity affects the stars, planets, natural satellites and gas around the black hole. Scientists can study stars to find out if they are flying around, or orbiting, a black hole.
When a black hole and a star are close together, high-energy light is made. This kind of light can not be seen with human eyes. Scientists use satellites and telescopes in space to see the high-energy light.
Q3.How Are Strange Black Holes Form?
Scientists think the smallest black holes formed when the universe began.Stellar black holes are made when the center of a very big star falls in upon itself, or collapses. When this happens, it causes a 'supernova'. A supernova is an exploding star that blasts part of the star into space.
Scientists think supermassive black holes were made at the same time as the galaxy they are in.
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