This seems to be the case.
Light takes time to cross the vast distances of space so when you look at a galaxy 12 billion light years away you’re also seeing it as it was twelve billion years ago.
This is annoying because you can’t see what’s happening there *now*, but it also gives us an invaluable ability to see back in time to a much younger universe.
When we analyze the chemical and stellar spectrums of these ancient galaxies we do see that they’re no different than our own. The physical rules that drive their chemical and nuclear reactions is the same as our own, across the vast distance and time.
Now what *will* happen is impossible to know, but what *has* happened suggests that the laws of physics remain constant for the observable universe across time and distance.
Latest Answers