The system of the universe

• The universe can be defined in simple words as everything that exists is the universe. And basically there are only two things that come under the realm of existence 1- Matter and 2- Energy, so the universe can also be said that all matter and energy combined together is called universe. Generally, the universe refers to the celestial bodies and the spaces between them and their interconnected systems that are created by nature, but in fact, the universe includes everything that exists. Sometimes the word is used for human life and things related to it, and here again it refers to everything that exists, even human experiences and man himself..

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