dwarf galaxies
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Recent Cosmic Collision Shakes Up Milky Way History
Evidence of the Milky Way’s past is encoded in wrinkles of stars, whose positions and movements have shifted as our galaxy has interacted with other galaxies, sometimes violently. Now, a team of astronomers say that the most recent of those cosmic collisions was billions of years later than was thought, making the Milky Way that…
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A Giant Galaxy Orbiting Our Own Just Appeared Out Of Nowhere
Researchers scanning the skies just got a big surprise. They spotted a humongous galaxy orbiting our own, where none had been seen before. It appeared, seemingly, out of nowhere.
