Debate Over Apparent Mass
In 1992, much of the apparent signal of the Great Attractor was attributed to the effect of Malmquist Bias. In 2005, astronomers conducting an X-ray survey of part of the sky known as the Clusters in the Zone of Avoidance (CIZA) project reported that the Great Attractor was actually only one tenth the mass that scientists had originally estimated. The survey also confirmed earlier theories that the Milky Way galaxy is in fact being pulled towards a much more massive cluster of galaxies near the Shapley Supercluster, which lies beyond the Great Attractor.
Read more about this topic: The Great Attractor
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