Something is dragging the Milky Way through space at 600 kilometres per second. Not our orbital motion around the galactic centre, not the general expansion of the universe — something else, something additional, pulling us and roughly 100,000 neighbouring galaxies toward a single point in space. What is the Great Attractor is one of cosmology’s most unsettling open questions: a gravitational anomaly of almost incomprehensible mass, sitting 150 to 250 million light-years away, that we cannot directly observe — because our own galaxy is blocking the view. What Is the Great Attractor: The Pull You Cannot Feel The story begins with a discovery that should have been unremarkable. In the late 1970s and early 1980s, astronomers mapping galaxy motion noticed something that didn’t fit. The universe was expanding as expected, but our local cluster was also drifting in a specific direction — toward a point near the constellation Centaurus —…