To add, Earth is only ~4.5 billion years old, the universe is 13.7 and possibly double that, so earth is only 1/3 the age of the universe. It took a lot of big

To add, Earth is only ~4.5 billion years old, the universe is 13.7 and possibly double that, so earth is only 1/3 the age of the universe. It took a lot of big stars going supernova to pollute the galaxy with enough dirt to make rocky planets, and in all that meantime, everything has been flying apart, with a significant chunk of it already so far away and expanding away even faster, there is measurable difference between the observable universe and the "whole universe."