A Concept of single Universe

The Universe is all about space, time and their contents like planets, stars, galaxies, and all other forms of matter and energy. While the actual size of the entire Universe is still unknown, it is only possible to measure the observable universe. The physical Universe is defined as all of space- time. The contents contains various types of energy, such as electromagnetic radiation and matter, and so planets, moons, stars, galaxies, and the contents of intergalactic space. The Universe also includes the physical laws which influence energy and matter, such as conservation laws, classical mechanics, and relativity. The universe is all about totality of existence, things which had been exists or which will exists. It would also include the concept of cosmos, world. With further experiments, it is known from its result that our sun is one of trillion stars present in our galaxy called the “milky way”, which perhaps is one of trillion galaxies of universe. So there are many stars which have their own planets. At large scale the galaxies are spread uniformly in all the direction, which suggests that there is neither a centre and nor the edge of universe.