Home > Astronomy > Scale of Earth, Sun, Galaxy, and Universe

How does our universe changed over time?

Answer 1

It’s a LONG time, and many changes. Mostly, it’s expanding.

There have been a lot of changes over the long term, mostly related to expansion. Some of the better infographics I have found are as follows: https://tutor.hix.ai https://tutor.hix.ai

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Answer 2

Ivy Allen

The current state of the universe is the result of processes such as cosmic inflation, galaxy formation, star life cycles, and expansion.

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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.