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How many planets are there in the entire universe?

Answer 1

We don't know, exactly how many planets there are in the universe.

We can't possibly explore the entire universe at this time due to its vast size, but we can estimate that there are millions of planets within it.

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Answer 2

Christopher Ales

The exact number of planets in the entire universe is currently unknown. As of now, scientists have discovered thousands of exoplanets (planets outside our solar system), but estimating the total number of planets in the universe is challenging due to the vastness of space and limitations in current technology.

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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.