You can get the direction of such waves by looking at 2 experiments at once, or experiments with 3-d mirror arrangements instead of 2-d ones. Yes, the existanc

You can get the direction of such waves by looking at 2 experiments at once, or experiments with 3-d mirror arrangements instead of 2-d ones. Yes, the existance of grav waves is only possible if they travel at some top speed, which is presumed to be the speed of light.