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The idea that the entire universe itself is spinning remains a question in astrophysics, and opposes the commonly accepted model that the universe is generally homogenous and isotropic - the same in all directions. Some studies hint that the universe itself may have a rotational motion but the concept has not gained general acceptance.

There are of course, orbital motions on smaller scales; rotations do seem to be part of a hierarchy ever increasing in scale; our sun taking about a fifth of a billion years to orbit the galactic center. It might be helpful to add that the galaxy is gravitationally bound to a group of galaxies forming a component of a larger scale galactic cluster which is in turn part of a supercluster; and these may be components of the largest scale structures known in the universe known as galactic filaments or walls; some of these structures appear to have intrinsic angular momentum around a common center of gravity, and, per laws of orbital mechanics, the further apart or bigger the structure, the slower it rotates.

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