How Many Galaxies in the Universe? Astronomers Are Revealing

How Many Galaxies in the Universe? Astronomers Are Revealing

How many galaxies are there in the universe? You will be surprised after knowing the number of galaxies in the universe. When you look up at the night sky through the veil of stars and the Milky Way plane close by, you cannot help but feel small in comparison to the vastness of the universe that lies beyond. Our observable universe stretches out in all directions for tens of billions of light years. In addition, nearly all of them are invisible to our naked eyes. The precise number of galaxies out there has remained a mystery, with estimates ranging from thousands to millions to billions as telescope technology advanced. Two trillion galaxies are the most recent estimate. A handful of galaxies without dark matter have recently been discovered. This could lead to the creation of entirely new types of galaxies, but for the time being, it raises more questions than it answers. According to James Webb space telescope observations, he days the universe has a huge number of galaxies. However, Space Telescope Science institute in Baltimore differs because he does not say how many. The acceptable range of galaxies is between 100-200 billion.

Milky Way

Our galaxy, the Milky Way, is just one of many galaxies in the universe, and it is not even a large one. Its diameter is approximately 105,700 light years. Milky Way is considered to be home to a minimum of 400 billion stars and 100 billion planets. We would have to abandon our calculators if we tried to calculate how many planets and stars those two trillion galaxies would contain. This is especially true given that some galaxies are hundreds of times the size of our Milky Way galaxy.

Who is Edwin Hubble?

Edwin Hubble is an American astronomer who is widely recognized as the premier observational cosmologist of the twentieth century. He is a crucial figure in the development of extragalactic astronomy. From a scientific point of view, the first device that helped to calculate the approximate number of galaxies was the Hubble space telescope. They found about 3000 fainter galaxies in a frame and the photo was called Hubble extreme deep field. The images from Hubble Space telescope highlighted white dust lanes and blue newly formed stars. In the 1920s, Hubble and others found that the universe was expanding by observing that most galaxies were receding from the Milky Way and that the farther they were from the Milky Way, the quicker they were receding.

How Many Galaxies Are There In the Universe?

In our Milky Way, there exists satellite galaxies, which are very small galaxies gravitationally coupled to larger ones. These tiny galaxies have been or are being eaten by their larger counterparts. The Large and Small Magellanic Clouds, for example, are satellite galaxies of the Milky Way. In the Milky Way, there are about fifty galaxies, with the Large Magellanic Cloud being the largest. Only 14,000 light years separate this satellite galaxy from the central galaxy. There could be up to 10 billion stars in the Large Magellanic Cloud. This small galaxy will collide with our Milky Way in roughly 2.4 billion years. Each galaxy is distinct, ranging in size from tens of thousands to hundreds of thousands of light years. Spiral, barred spiral, lenticular, elliptical, and irregular galaxies are the five types of galaxies. Our galaxy, the Milky Way, is considered to be a barred spiral galaxy. According to a study carried out in 2013, there are about 225 million galaxies in the observable universe. some galaxies are too faint such that even larger telescopes or the most powerful telescopes cannot observe them easily.