Science: What is the galaxy more in the universe?

Until the 1920s, we had the idea that the expansion of the universe up to the Milky Way galaxy. Astronomers Hebeer de Curtis and Edwin Hubble have demonstrated through their testing that galaxies are not only ours in the universe, but also many more. Our Milky Way galaxy is just one of them.
The concept of multiple universes or the expanding universe is only an open concept. Many times they are called Parallel Universe or Alternator Universe. It is assumed that there is another universe in our universe that is our twin. Scientists have many arguments about whether this idea is true or not. But the truth is, if there is any, there is no way to research or learn about it.
There is only one universe in front of our eyes, in which we live. But apart from us there is no other universe that can not be said. If it is still there, it is not possible to find such a hurry. So it is still a big question to science.
Source: boredpanda.com