Defining universe

The universe is the sum total of everything that exists, including all forms of matter and energy around us. It encompasses everything from the smallest subatomic particles to entire galaxies. The universe has been expanding since it was created about 13.8 billion years ago. It is estimated to have a diameter of about 93 billion light years. The universe is ongoing and will continue to expand forever.
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Creation of universe- Theory

Many different religions like Muslims and Christians believe in the creation theory of universe which states that God has created everything present in the universe in 7 days . Some scientists also believe in the theory of universe and some don't. It all depends on your beliefs. I believe on this theory because i am a Muslim and this thing is mentioned in Quran many a times . But there are scientists who also believe in this theory and they have their own reasons. So it all depends on your beliefs. Quran has many things stated in it 1400 years ago which the present day science also agrees with so concluding all this i also believe in creation theory of universe.

Interesting elements of the universe

In addition to matter and energy, the universe contains dark matter and dark energy, which are both unknown substances. There are also unidentified forms of matter in the universe but i find dark matter the most interesting of them all because It has not been detected directly, which means we don't know what it is made of or how much there is of it. But we can study its effects on other objects in the universe. It is said that when a star dies , some of the material it contains falls to the center of the galaxy and forms a black hole. Black holes suck in everything that comes near them, including light. So when we look at an object in the night sky and see it as a point of light, that object is actually very far away and only looks close because of the black hole's effect.

Other interesting thing about the universe is that it is expanding continuously which means that every point in the universe is moving away from every other point. This expansion began about 13.8 billion years ago and will continue forever. In addition, the universe is expanding faster than the light that means we can't see beyond the edge of it. Scientists are trying to figure out how far away the edges of the universe are and whether or not there is anything else out there.