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Dark Flow

(non-random patterns in peculiar velocity of galaxy clusters)

Dark Flow is a pattern in the movement of Galaxy Clusters suggesting a force other than whatever powers Hubble's Law (Hubble Constant), e.g., the Gravity of a compact but very massive object. Observations of the Cosmic Microwave Background are used to study it. The dark flow is toward the Great Attractor.

(cosmology,gravity,galaxy clusters)