Black hole



Black hole

I have read something interesting today. Did you know what is black hole? how did it exist? Why it exist? . Black hole is a place in space where the gravity is so high that not even the light can escape. Black hole came from various size, it can be big can be small. Scientists think the smallest black holes are as small as one atom. These black holes are very tiny and have a mass of large mountain. Mass is the amount of matter in an object. Another kind of black hole called stellar. It mass is more the 20 times much higher than the sun. There are many stellar black hole in our galaxy ( the milky way ). And the largest black hole are called super massive. These black holes have masses that are 1 million suns fuse into one. The super massive black hole in our universe is Sagittarius A, it has mass equal to 4 million suns and would fit inside a very large ball that could hold a few million earth. Scientists think the smallest black hole form when the universe begun. The stellar black hole form when the center of a very big star collapse. When this happen it cause supernova. The super massive black hole form at the same time as the galaxy they are in. the black hole cannot be seen. Because of strong gravity pull all of the light in to the center of the black hole. But scientist can see how strong gravity effects the stars and gas around the black hole. Scientist can study the 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. Scientist use satellites and telescopes in space to see the high-energy light. It is kind of creepy right? We will not know where we end up if the black hole swallow us. But there is another hole in the outer space it is white hole it is polar opposite of black hole. But I will discuss about it some other time. So stay tune!

 

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