Great Attractor

Great Attractor

noun
a vast concentration of matter whose gravitational pull alters the direction and speed of the Milky Way and other galaxies as they spread apart in the expanding universe posited by the big bang theory.

Origin:
1985–90

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Great Attractor
 
n
astronomy a large mass, possibly a gigantic cluster of galaxies, postulated to explain the fact that many galaxies appear to be moving towards a particular point in the sky

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