Despite its magnificent look, a galaxy is very huge and it holds more than 100 billion stars. I am always amazed whenever I see a picture of a galaxy not only because the colour is amazing, the fact that every galaxy has a supermassive black hole at the centre is unique to me. I think if a single galaxy can hold more than 100 billion stars, there is always a possibility of life outside of Earth. I wonder when we will be able to visit other parts of our galaxy.
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