Answer

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**Hint :**Astronomical units, abbreviated as AU and the universe are the two big terms given the problem above. Thus, we shall first gather more knowledge about the universe and the astronomical unit. Then we will relate the distance of the center of the universe from the earth to the astronomical units.

**Complete step-by-step solution:**

We know that the universe is very immense and vast, therefore usual units of measurements cannot be used to observe the distances related to it. This led to the need for new units of measurement for the measurement of distances in the universe. Hence, the astronomers developed a new unit called the astronomical units.

Astronomical unit is the distance of the earth from the Sun in the solar system which is roughly equal to $150$ million kilometers.

Therefore, $1AU=150$ million kilometers.

Our solar system extends from the sun to the Oort cloud.

However, there is no clarity till date about the size of the universe. The concerned scientists and astronomers are still searching for the center of the universe. It is often said according to the Big Bang Theory that there is actually no center of the universe and the universe exists everywhere.

Thus, we cannot give any exact figures regarding the distance of the Earth from the center of the universe.

**Note:**

Comets originate from the Oort cloud. This is a bunch of frozen gases and ice particles. Thus, this is the outer boundary of the solar system. The distance of sun from this outer boundary is $50,000AU$ and thus, the radius of the solar system is $50,000AU$. Also, another unit of measurement used to measure such distances is light years.

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