I am wondering about the speed of the outer bands of galaxies and if they are moving at or faster than the speed of light? And then the thought of the speed of space expansion and and the body of the galaxy moving and the rotation of planets around the stars(solar system) and the spin of the planets themselves. If these were all to move in the same direction at the same time, how fast would that be (if you were on the planet)? Got to be moving faster than the speed of light. Or does the proximity of mass negate these? Particles in the accelerator at just below the speed of light only adding the rotation of the earth would qualify, right?