Both
they move by not moving.
Spin Move Records was created in 1996.
Basically, his discovery was that most galaxies move away from us; and that the galaxies that are farther away, also tend to move away faster.
Some nearby galaxies move towards us (blueshift), some move away from us (redshift). Galaxies that are farther away all move away from us (redshift); this means that the Universe is expanding.
The general tendency is for galaxies to move away from each other, in other words, the Universe is expanding. Only in our "immediate neighborhood" will you also find some galaxies that move towards us.
Galaxies generally move away from one another.
Most move away from us, and each other.
The general tendency is for galaxies to move away from one another - the further apart they are, the faster they move away from one another. In other words, the Universe is expanding. Galaxies also have some "random" proper movement, which can be thought of as superimposed on this general expansion.
Away from us.
The force that causes galaxies to move away from one another in the universe is called dark energy.
The stars in all galaxies must move otherwise they would fall toward the center and create a gigantic black hole. By spinning, galaxies avoid that fate. Some irregular galaxies exist with stars going every which way. Gravity makes some stars give energy to other stars so some will fall toward the center of those galaxies. That might make irregular galaxies start spinning. Nobody knows, but irregular galaxies should have a whole lot more stars drop toward the center than happens in a regular galaxy. That should make the black hole spin. A black hole gives off tremendous gravity. It gives off more as stars fall into it. That should start the galaxy spinning.
Most galaxies move away from us - the farther they are from us, the faster they move away from us. This means that the Universe is expanding.