When I read about past events in the universe (i.e. big bang, formation of the sun and planets, etc) future events (i.e. sun becoming a red giant) and distant objects (black holes, nebulas, galaxies, etc), it appears to me that a big assumption is always made:
The laws of physics observed from earth today are the same throughout the universe, and throughout time.
My question is: do we have any evidence that supports this assumption? Or do we make this assumption simply because we have never seen evidence to the contrary?
