Our space is expanding… 56 thousand galaxies mapped for the first time

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If you look at the sky at night, you will feel that everything is the same. But our space is constantly expanding. This was confirmed when for the first time the largest map of 56 thousand galaxies present in the universe was made. The universe is continuously expanding. in every direction. From this map, scientists will get to know about different worlds.

For the first time, 56,000 galaxies have been mapped. Our galaxy looks like a small dot on this map. In fact, the distance between them is so great that all the galaxies are shown on the map as landing points. This map has shown that our universe i.e. space is rapidly expanding all around. Now it will be easier for scientists to discover new planets, supernovae, black holes, alien worlds, and life.

GALAXY1

The universe is believed to be 13.8 billion years old. That is, 1380 crore years old. But the Methuselah star is even older. Therefore it is difficult to ascertain the exact age and size of the universe. Scientists take the Hubble constant as a unit for measuring the length and width of space. That is about 75 kilometers per second for every megaparsec. Simply put, 32.6 million light years. But there are other methods of measurement as well, so it’s a bit difficult to estimate the exact size of the space.

The new map of 56 thousand galaxies is named CosmicFlow-4. This map confirms the formula for the speed of 75 kilometers per second. Scientists use eight methods to measure distances in space. Two of which are new. The remaining six are made from old studies. When these methods are compared, scientists are able to produce a more accurate map. That is, a new map is made by combining the formulas of all the methods.

This map gives information about many things

The distance between 56 thousand galaxies can be extracted from the CosmicFlow-4 map. Their collective distance can be determined. Along with this, the speed of their spread can also be detected. Even stars that exist in the trillions of numbers can be traced. Astronomer R.K. of the Astronomy Institute at the University of Hawaii. Brent Tully said that we created this map by analyzing the results drawn from several methods. There may be mistakes in it but it is the greatest map ever. Also the most accurate.

GALAXY2

How does one measure the universe? 

The universe is infinite. Then how will its map be made? The map is made up of objects with a limited radius. But the scientists who created the CosmicFlow-4 map made maps in eight ways. Then a map was prepared by combining them. Because galaxies are always rotating. Their brightness keeps on increasing or decreasing with rotation. Their distance can be gauged from the light emanating from them. This study has recently been published in The Astrophysical Journal.

Read More: Oldest Heart: Found the world’s oldest heart, you will be surprised to know its age

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