There's a news report now about when the first stars formed. It says the first stars formed between 250 and 350 million years after the Big Bang, that's over 13 billion years ago! They say they've used a combination of several telescopes to look further back in time to see the earliest galaxies.

So particles of light has been travelling through all ages of the Universe all that time and nothing got in their way eh?

Now if the Universe was created by some astronomic explosion, what came out of it would go in all directions? That being so, wouldn't there be some central point where it all kicked off and we don't know exactly where we are in relationship to the complete Universe? OK, so we know where we are in relationship to our "own" little corner of our Galaxy, but when we look "out" where are we looking? Do we know? Which way is towards the "centre"? If we look towards that centre, there will be at least just as much stuff on "the other side of centre"?

Lots of things to do with the greater Universe is just enlightened guesswork really?