Never knew that we lived here? Neither did anyone else until astronomers recently were able to map the position of galaxies in our region of the universe. By estimating their motions based on gravity, they were able to identify separate groups of galaxies called superclusters. We have know for a while now that space is not uniformly pocketed with galaxies but they are found in groups. Until now, however, the groupings were fairly random. The Milky Way Galaxy is on the fringe of a network of galaxies all being pulled by gravity toward a central attractor.
Watch the animation for more information.
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