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Dwarf Galaxies That Dance? Andromeda Observations Reveal A Larger Cosmic Mystery - Universe Today
What is up with these dwarf galaxies? A survey of thousands of galaxies using the Sloan Digital Sky Survey reveals something interesting, which was first revealed by looking at the massive Andromeda Galaxy nearby Earth: dwarf galaxies orbiting larger ones are often in disc-shaped orbits and not distributed randomly, as astronomers expected. The finding follows … Continue reading "Dwarf Galaxies That Dance? Andromeda Observations Reveal A Larger Cosmic Mystery"