Galaxy Orbits Betray Neatnik Universe

Usually, the progress of science leads to greater complexity — alas, Earth isn’t the only world; no, electrons aren’t tiny little balls; unfortunately, germs aren’t all good or all bad . But once in a while, scientists discover the universe likes a little order, too: Astronomers have just found out the hordes of dwarf galaxies that orbit big ones tend to do so within a nice, well-defined disk. Now the only question is, why?
Grappling with Galaxies
It’s a great big universe out there, fille

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