The Great Attractor is a gravitational anomaly in intergalactic space and the apparent central gravitational point of the Laniakea Supercluster. The observed anomalies suggest a localized concentration of mass millions of times more massive than the Milky Way. The Great Attractor is thought to be at the gravitational center of the Laniakea supercluster of which the Milky Way is but one galaxy of 100,000 others. One theory is that it's a confluence of dark energy. Another is that it might be caused by over-density, an area of dense mass with an intense gravitational pull. Currently, the Great Attractor is 400 million light-years away; therefore, that gives the Earth a proper 13 billion years before it approaches the event horizon. The great attractor won't destroy our galaxy because we'll never reach it. About 5 billion years ago, dark energy began to dominate our universe.,' Dr Sutter told Mail Online. 'We don't know what dark energy exactly is, but we do know that it's causing the expansion of our universe to accelerate. So the Great Attractor isn't really a thing, but a place: the focal point of our patch of the universe, the end result of a process set in motion more than 13 billion years ago, and the natural result of the flows and buildup of matter in our universe. The survey also confirmed earlier theories that the Milky Way galaxy is in fact being pulled toward a much more massive cluster of galaxies near the Shapley Supercluster, which lies beyond the Great Attractor, and which is called the Shapley Attractor. It is estimated that the Great Attractor would have a diameter of about 300 million light-years and that its centre would lie about 147 million light-years away from Earth. At 2.2-million kilometres an hour, the speed of the Milky Way through the Cosmos is 2,500 times faster than a cruising airliner; 55 times more than the escape velocity from Earth; and a factor of two greater than even the galaxy's own escape velocity! But where this motion comes from is a mystery.

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