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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.
What else can I help you with?
What direction does a bullet spin?
Direction of spin is dependent on the direction of the rifling on the inside bore of the barrel. A bullet will spin the same direction as the rifling.
When an electron in H changes it's spin from the same to the opposite direction as the proton?
When an electron in a hydrogen atom changes its spin from the same direction to the opposite direction as the proton, it results in a flip in the direction of the overall magnetic moment of the atom. This process is known as electron spin-flip or spin transition, and can affect the atom's magnetic properties.
Why do galaxies spin in different directions?
Most, but not all, spiral galaxies rotate in the same direction - clockwise as seen from Earth.Some, like the Black Eye Galaxy, have an inner region that rotates in the opposite direction to the outer region.
Does the Earth spin on its axis in the same or opposite direction as the moons orbit?
The direction of the Earth's spin and the direction of the Moon's orbit is the same - counterclockwise
Which direction do the turbines spin in when the tides come in and out?
Turbines typically spin in the same direction regardless of whether tides are coming in or going out. The direction of spin is determined by the design of the turbine blades and the flow of water.
Does earth always spin in the same direction?
Yes it does no matter what.
Do galaxies spin or move?
Both
Why do all planets spin the same direction?
They don't. Uranus spins on a "sideways" axis with retrograde spin. Venus also has a retrograde spin. Most spin in the same direction though. This is probably because of how the Solar System was formed, from a spinning disc of material.
What direction does the moon rotate in?
Counterclockwise. All objects in space spin counterclockwise except Venus because it is was to believed to be hit by a large object that changed its spin.
Does spinning water always spin in the same direction?
The direction in which water spins can be influenced by various factors such as the shape of the container, the initial motion of the water, and external forces such as wind or currents. In nature, water can exhibit different spinning directions depending on the circumstances.
Does the earth rotate east to get sun?
I am not sure what you are asking here, So I will try my best at guessing. Why does the earth rotate in the direction and the way it does, and all of the other planets rotate in the direction as well, and all of the planets orbit in the same direction around the star. All orbiting the same way. The milky Way Galaxy spirals again in the same circular orbit direction. I too wondered why does everything spin, rotate, orbit, in the same direction. Like a lot of science, This is only a theory, The theory I find that makes sense to me, is atoms and electrons spin in this way, If this spin conserves momentum, then our solar system, and galaxy, and all other galaxy's in the universe will spin the same. An interesting thought?
What evidence is there of the existence of dark matter?
The gravitational effects. For example, gravitational lensing; also, galaxies spin way too fast for the amount of known matter.
