
Originally Posted by
Abra
First, know that when we see galaxies, we are seeing the past. We see what they looked like millions of years ago, because they are an equal number of millions of lightyears away. The "front end" will look more recent than the "back end," because the front end is closer. It also depends on the viewing angle. If the galaxy is perpendicular to our viewing, then they the viewed galaxy should be from the same time period.
Of course, I'm no astronomer...
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