Galaxies Bring Dancing With the Stars to New Level

What is small, mysterious, faint, in the process of losing mass, and can dance like crazy? Could it be Marie Osmond? Well, that might be the correct answer in this galaxy, but just on the outskirts of the Milky Way are small, mysterious galaxies called dwarf spheroidal galaxies, and a new study offers an explanation for the origin of these puzzling objects. But can they really dance? Yes, says lead author Elena D'Onghia of the Harvard-Smithsonian Center for Astrophysics.
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