- #1
gway22
- 1
- 0
This might be obvious but i was listening to someone talk about how he believes the big bang is cyclical and the universe is constantly expanding and contracting. now i don't believe this but one of the points he raised was (and i know it doesn't support his argument) we don't know if galaxies are still moving away from us since the light we see from an object a million light years away takes a million years to reach us, we may see it red shifted now but it could be coming towards us but the light wouldn't be blue shifted until a million years after it started to move towards us. Is this correct?