That is the entity that is running the system

 That is God

"NASA Expert believes that about 1000 Earths can fit in Jupiter and about 1300 Jupiters can fit completely in the Sun, but the surprising thing here is that there is a star in our universe, which is called Stromer. named UY scuti, it is a huge star, it is so big that 5.1 billion suns can fit in it. Now calculating the size of the earth is not the job of an incompetent person like me, because if it can fit 5.1 billion suns in it. If the earth is banana, it becomes difficult to find digits, in this universe our earth is like a dot. 
This UY scuti is 5219 light-years (the distance light travels in one year) from our Earth. Its radius is 1.1883 billion kilometers. If the journey is not even one light year, think how far it is from our earth. But the surprising thing is that stars like UY scuti in the universe are not in millions but in billions.
If you are a student of science and reading science does not strengthen your faith in Allah Ta'ala, then congratulations, you are studying the wrong science, because ask yourself how big the person running such a large complex system can be. !!!