The light doesn't get ahead. The systems are simply too far apart for the light to reach from one to the other right away. Think about it. Even if the two systems were the same age, if we are closer to one of them, it will appear more developed, simply because its light reaches us sooner. So, by the time the *early* light from the distant system reaches us, it's already in the path of a galaxy cluster. For all we care, right now there could be a huge black hole there, where we are now seeing young stars...but we won't find out until another 13 billion years or so.
In other news, the new Slash Content Generator is tested on the main slashdot site.
:-)
C'mon. You gotta admit at least some of these stories seem like they were pulled from that site
The light doesn't get ahead. The systems are simply too far apart for the light to reach from one to the other right away. Think about it. Even if the two systems were the same age, if we are closer to one of them, it will appear more developed, simply because its light reaches us sooner. So, by the time the *early* light from the distant system reaches us, it's already in the path of a galaxy cluster. For all we care, right now there could be a huge black hole there, where we are now seeing young stars...but we won't find out until another 13 billion years or so.
It's taboo. Dont you get it?