The Boötes Void is one of the largest-known empty regions in the universe, spanning about 330 million light-years across. It contains far fewer galaxies than expected, earning it the nickname “the Great Nothing.” Discovered in 1981, this cosmic void challenges our understanding of galaxy formation and large-scale structure, showing that matter in the universe is unevenly distributed. Scientists study it to learn how galaxies cluster and how cosmic voids evolve. Despite its emptiness, some isolated galaxies exist inside, making it a fascinating area for astronomical research and exploration.
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