Pluto

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The Universe is considered by some to be infinite, while others find comfort in the fact that it may have an end. Throughout the ages of space exploration, the only certain thing is maybe the fact that the Universe will never be charted.

Why is this? It’s because of the endless galaxies that seem to pop out left and right, their sizes, distances, and other aspects. So how many galaxies are there in the Universe? Currently, the observable Universe, which has a radius of 46.5 billion light-years, seems to contain at least two trillion galaxies.



Our galaxy, the Milky Way, is just one among these numerous galaxies, and it isn’t even considered a big galaxy. It stretches for 105,700 light-years in diameter and may contain at least 100 billion planets and around 400 billion stars.

Now, if we were to imagine how many planets and stars those 2 trillion galaxies might have, we would probably have to throw out our calculators. This is especially true since some galaxies are several times larger than our Milky Way Galaxy.

 

Largest Galaxy Ever Discovered
The largest galaxy ever discovered in our Universe is the supergiant elliptical galaxy designated as IC 1101. This galaxy contains well above 100 trillion stars, and it stretches for over 5.5 million light-years across.



IC 1101 is around 50 times larger than our Milky Way Galaxy, and it is situated at approximately 1 billion light-years / 320 megaparsecs away from us. 

How Many Galaxies are there in the Milky Way?
Our own Milky Way has some satellite galaxies, which are very small galaxies that are gravitationally bound to larger ones. These small galaxies have been or are in the process of being integrated/devoured by their larger brethren.


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