How many stars exist in total?

This is a difficult question to answer, but we can provide a very rough estimate. In our galaxy alone, there are roughly 1011 to 1012 stars. Then consider that there are roughly 1011 to 1012 galaxies in total, and, if we assume the other galaxies are similar to ours, this would put the total number of stars in existence somewhere between 1022 to 1024 stars. Clearly there are too many to count!


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