Are the laws of physics the same all over the universe?

Question

Are the laws of physics the same all over the universe?

Answer 1

Hopefully so.

May be there exotic types of atoms with different electron structures and orbit patterns! Who knows?

Answer 2

So far as anyone knows at present, the answer is YES.

Periodically, someone suggests that one or another of the constants of physics have changed with time which would mean that physical law might be different in parts of space so distant that they might have existed at different time.

Answer 3

There's no reason to think they aren't.  Although the same laws manifest themselves differently under different circumstances.

Answer 4

Assuming that our laws of physics are 100% correct then yes. However that is very unlikely. Eventually we will discover something in the universe that will require our current laws to be rewritten in order to make room for the new discovery. The universe can be quite a rebel. Just because we make the laws doesn't mean the universe will obey them.

Answer 5

Theoretically, yes. And our measurements of distant galaxies assume that to be so, and there's never been evidence to the contrary. But we can't exactly go millions of lightyears away to check.

But remember that there may be a multitude of universes. And each one may have it's own constants which will radically change how those laws work.