Atronomers are far from a solid answer and will be, because we live in 4D and the Universe around us is in 12D and beyond. "Masterphysicist" knows the meaning of the threads.
To investigate this further we need a Quantum lens.
Look at http://www.wasapower.fi/200564230
Using Quantum lens
and looking other galaxies from a certain angle you can see how they have a symmetry of a beautiful mandala.