This is question that has been on my mind for quite some time.
As technology advances, telescopes are more and more powerful. This means that we can see further and further out.
So if I look at an object (ie. a galaxy) with a powerful telescope don't I "intercept" the light earlier than I...
My first post here.
My level of expertise in this field = 0, although my interest is very high!
If I understand well what I've been reading:
after the BB the universe starting expanding
then the expansion slowed down
then for the last 5 billion years the expansion reversed its course...