I'm wondering what sorts of velocities exist for large objects in the universe. Specifically, I'm wondering whether huge objects exist which are travelling across the cosmos at huge velocities, and what those objects and velocities might be. For example, are there stars moving in intergalactic space which are "whizzing past" other random objects that might wander into their paths? How about within the milky Way Galaxy? What sort of relative velocities are galaxies moving at with respect to each other? Are there any examples of galaxies traversing space at an extraordinarily high velocity compared to the norm? In general, are galaxies relatively static WRT each other, or are they all moving around in all directions at significant velocities?