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The Wall Made Out of Galaxies
Galaxies don’t just drift randomly—they move along invisible highways shaped by dark matter. But in 2021, astronomers found something stranger: an unexplained barrier in space. The "South Pole Wall" is a cosmic structure 1.4 billion light-years across, hidden behind the Milky Way. It’s not a literal wall, but a dense, curving sheet of galaxies stretching across space like a ripple in the universe’s fabric. We don’t know how it formed, and it suggests that even on the largest scales, the cosmos is structured in ways we barely understand.