Scientists believe dwarf galaxies are the best place to study dark matter because they are made up almost entirely of the stuff, whatever it is. A new study of two dwarfs, however, have befuddled them.
The usual assumption is that dark matter is concentrated in the center of dwarf galaxies. In these two, however, it seems to be spread evenly throughout the galaxies, which has thrown the researchers into a tizzy. According to one, they know less about dark matter after the study than they knew before. Of course, that isn't so if what they "knew" before was incorrect or incomplete.
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