How does the observable universe differ from the universe?

Answer 1

The observable universe is the part of the universe which we can see right now whereas the universe is the entire universe.

The observable universe is 45 billion light years in diameter and is actually "shrinking." Because of this, objects outside the observable universe are invisible to us. The light from these objects tries to reach us, but because the universe is expanding quickly, it is unable to keep up with the expansion and remains invisible. At the moment, the farthest object visible is 13.7 billion light years away, but with time and some reasoning, it will eventually reach 45 billion light years from us.

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Answer 2

The universe, on the other hand, includes all of space, time, matter, and energy, including regions beyond what we can observe due to the limitations of light speed and the expansion of the universe. The observable universe is the portion of the entire universe that can be observed from Earth or any other vantage point in space. It is limited by the distance light has traveled since the universe's beginning, approximately 13.8 billion years ago.

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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.

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.

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.

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.

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