The size of the universe is hard to define for some extent. According to the general theory of relativity, many areas of space can never interact with us during the lifetime of the universe due to the finite speed of light and the ongoing expansion of space. For example, radio messages sent from Earth can never be reached in some areas of space, even if the universe continues to exist forever: space can be expanded faster than light.
The remote areas of space are presumed to exist and we can be part of reality, even though we can never interact with them. The local area that we can influence and be affected is the Supervision Universe. Supervisor depends on the location of the universe. By travelling, an observer can still be in contact with a larger area than a spectator rather than an observer. Still, the fastest traveler is not able to interact with all of the space conflicts. In general, the observation of the cosmic universe is taken to mean the parts of the universe that supervised from our vantage point in the galaxy. The proper distance-the distance will be measured in a specific time, including the 46 billion light-years (14 billion parsecs) between the edges of the Earth and the Supervision Universe, the diameter of the observable universe is approximately 93 billion light-years (28 billion parsecs). The distance from the coast of the Supervisory Universe is much closer to the speed of the cosmic time, 13.8 billion light-years (4.2 × 10^9 pc), but it does not represent distance at any time because the observer's borders and the edges of the Earth are further separated. For comparison, a typical galaxy has a diameter of 30,000 light-years (9,198 parsecs), and the typical distance between the two neighboring galaxies is about 3 million light-years (919.8 km2).
For example, Milky Way is about 100,000-180,000 light-years in diameter, and the nearest sister galaxy to the Milky Way, the Andromeda Galaxy, is located about 2.5 million light-years away. Because we cannot observe the outer space beyond the borders of the supernatural universe, it is unknown whether the shape of the universe is finite or infinite in its totality. The estimates for the total size of the universe, if finite, reach as high as 10^10^10^122 Megapersecs, is implied by a resolution of no-boundary proposal.
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