Our Galaxy’s "Big Ears": Milky Way’s Large Companion Galaxies Stand Out

Our Milky Way is just one of many billions of galaxies that dot the cosmos–an ordinary spiral in a universe filled with them. The unspecialness of our corner of space, an idea known as the Copernican principle, is a cornerstone of modern cosmology.

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Our Galaxy’s "Big Ears": Milky Way’s Large Companion Galaxies Stand Out