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Does the universe have a top and bottom? If so, would it be resting on something or is it free falling?

Answer 1

We can only theorise about what is beyond the universe, as it is obviously impossible to measure anything about that currently.

First of all, the universe is most likely spherical, meaning that it is expanding simultaneously in all directions in addition to having an expanding top and bottom. Imagine the universe as an expanding bubble, with everything contained inside.

Second, we don't even know if there is anything beyond the edge of the universe, so even if we were able to get there, we probably wouldn't be able to measure it.

Thirdly, it is practically impossible to even measure or record any signal from the edge of the universe, let alone travel there, due to its enormous distance from us.

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Answer 2

Levi Anderson

The universe, in our understanding, is expanding in all directions, has a dynamic and complex structure, and lacks a clearly defined top or bottom. It is also neither resting on anything nor free falling in the traditional sense.

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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.