What can merging star clusters teach scientists about the formation and evolution of dwarf galaxies, which are smaller galaxies than our Milky Way and orbit larger galaxies? This is what a recent ...
Astronomers have pulled a discovery out of old Hubble data that changes what dark matter science can do: a faint ribbon of stars caught unraveling from an ancient cluster around a galaxy 115 million ...
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Milky Way's own gravity can mimic dark matter clues, stellar stream simulations suggest
Most of the stars in our Milky Way galaxy sit neatly on a flat plane. But the space around our galaxy is much more chaotic. Rogue bands of stars called "stellar streams" orbit the Milky Way much like ...
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