posted on Aug, 9 2007 @ 02:40 PM
^^The universe "in general" is expanding and "in general" things are moving away from each other, but that doesn't mean that there are not some
local instances of gravity causing bodies (or structures) to be attracted to one another.
An small-scale example (but not that relevant of an example) would be Barnard's Star -- it is actually moving toward the sun (relatively speaking).
It is presently the 4th closest star to our sun (after the three stars that make up the Centauri system), but in about 10,000 years, it will be our
sun's closest stellar neighbor.
A larger example the Sagitarius Dwarf Elliptical Galaxy (SagDEG), which is presently colliding with our own Milky Way Galaxy.
In short, galaxies and even groups of galaxies may be locally attracted to one another, but the fabric of the universe AS A WHOLE is stretching. It
may be hard to imagine, but even galaxies are small things compared to the the entire universe.
[edit on 023131p://42082 by Soylent Green Is People]