Why do galaxies spin?

What caused the rotation of galaxies, and do they all do it? read more

In the early stages of the Universe, clouds of gas came together to form the stars. These stars were then gravitationally attracted to each other to create gigantic clusters of stars enshrouded in clouds of gas. read more

If the matter were distributed completely uniformly, there would be nothing to pick one spot over another for the galaxy to start clumping. Each bit of matter would have a uniform surrounding and not be pulled any direction. read more

Ergo, why do galaxies spin, and, why the spin of a spiral galaxies are from the inside out. The specifics of how the various spiral galaxies rotate, what direction and on what axis in relation to neighboring galaxies was decided billions of years ago when the first merging (clumping, collapsing) took place, built therefrom and became the centers of the trillions of spiral galaxies, exactly what we see today. read more