"The Andromeda Galaxy is a Spiral Galaxy in the Universe"
The Milky Way galaxy in the universe is called the home of the stars in which billions of stars orbit the front together. Our Sun is also a single star orbiting the Milky Way galaxy.
Throughout this universe, stars, planets and galaxies are colliding with each other. In such a battle, the one who is bigger and stronger always wins. One such giant galaxy is located in the universe which contains more than 16 smaller galaxies and our neighboring galaxy is the Andromeda Galaxy.
This was not an already large galaxy but a smaller galaxy that became larger after colliding. Andromeda Galaxy is also called Messier 31 or M-31. Since it has a magnitude of 3.4, it can easily be seen with the naked eye as a long faint milky streak. It is a spiral galaxy located 2.5 million light years from our solar system.
In 964, the Parisian astronomer Abd al-Rahman Sufi first discovered the Milky Way, but published it as the Nebula Dabba. Then in 1612, the German scientist Simon Morius said that there are many small stars and small holes in the nebula, but he could not prove it theoretically.
Then in 1864, a scientist named William Herschel said that this is not a big nebula but a giant galaxy. After that, in 1887, after the first image of this galaxy came into existence, it was found that this is a large optic-shaped galaxy. The size of which is approximately two and a quarter lakh light years.
This galaxy is the most massive of the infinite galaxies discovered so far, weighing 1.5 times more than our Milky Way. More than 1.5 million light-year stars were discovered in this galaxy in 2006 by the Spitzer telescope.
In the year 2017, 26 black holes were discovered in the Milky Way Galaxy based on the Nuclear Spectroscopy Telescope by NASA, besides there are supernovae, star clusters and countless solar systems. The special feature of Andromeda is that some of the small galaxies in it are clockwise and some are anti-clockwise, so collisions are also accelerated, so this galaxy has become a thousand times larger than before.
The number of stars in the Andromeda galaxy is one trillion, while we in the Milky Way probably have 300 billion. The stars in Andromeda are more light-years older than the stars in the Milky Way, so they are brighter than our Milky Way.
At the center of the Andromeda Galaxy are two points, one brighter and the other fainter. Both these points are located about five light-years apart, but what is surprising is that the less luminous point is the main center of this galaxy, which contains a supermassive black hole. More than 26 black holes were discovered in this galaxy by Hubble telescope and Chandra X-ray observatory. Apart from this, in the year 2009, the first planet was discovered in Andromeda with the help of micro lensing technique by NASA.
The Andromeda Galaxy and our Milky Way are approaching each other at a speed of 115 km/s, making it very likely that the two galaxies will collide in about 4.5 billion years, causing a big bang, resulting in a massive and massive optical galaxy. will be built, which will be called Milkomeda.
According to scientists in the year 2012, after this collision, our solar system and the sun will reach another end, but will human civilization survive to see this collision?
-- Bhautik Thummar.
