Exactly how large is the universe? Where do its boundaries lie?

Answer 1

Measured in light years, about 45 billion in all directions from our galaxy.

The truth is that nobody really knows. One topic of discussion in scientific circles is the universe's shape; some think it is flat, while others think it resembles a soccer ball.

However, there seems to be an incomprehensible aspect of the universe: each galaxy seems to be expanding at an ever-increasing rate from the others, and each galaxy is situated in the center of the universe. The space-time continuum is nonlinear, but this fact merely blurs the boundaries regarding the universe's size, shape, and age.

Another mystery is that there are no boundaries.

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Answer 2

Elena Antonova

The exact size of the universe is unknown. It is constantly expanding, and its boundaries are not clearly defined.

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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.