[neutralino]

Originally Posted by Pramod Desai

Dear MJA

Thanks for the response but honestly I failed to connect with my query. If we say that a galaxy or a star, miliions of light years away is behaving in a particular manner, that must have been millions of years back. So what would be the state of affairs now ? How do our theories about the universe deal with this? This is a layman's question.

Pramod

The truth is, we don't know. If we view a star that is a million light years away, then we can say what the star looked like a million light years ago (well, a bit more than a million light years ago, due to expansion), but we don't know what it looks like right now!