The Dipole Repeller
COSMIC FLOW · pushed by emptiness
Our galaxy rushes through space at 600 kilometers per second, and not only because something pulls: behind us lies an enormous cosmic void, and its emptiness effectively pushes. Voids do not repel by force; with less gravity inside them, everything around drains away from them. The discovery that nothingness steers galaxies is one of cosmology's most elegant plot twists.
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