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How many galaxies do astronomers estimate there are in the Universe?

Answer 1

100 billion galaxies (100,000,000,000)

According to astronomers, there are approximately 100 billion galaxies in the observable universe. This estimate is derived from counting the galaxies in a specific region and multiplying that total number to get the number of galaxies in the universe.

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Answer 2

Christopher Ales

Astronomers estimate that there are approximately 100 billion to 200 billion galaxies in the observable universe.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.