The Pull We Can't See

We can't see the Great Attractor directly from Earth. Astronomers know it's there because the Milky Way and its neighbors, including our Local Group, move at about 600 km/s toward that region of space. The Milky Way's dense dust and stars block the view in visible light, putting the target in the Zone of Avoidance. Therefore, scientists can't observe what's pulling our galaxy in that direction.

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