So I do not have a clue whether this question has any merit or not. (which is why I came here) I have heard that masses create ripples in space-time (gravity waves) as they move. I have drawn a couple of logical conclusions that I would appreciate if you guys would verify or discredit. Assumption one: To create a wave, energy must be expelled. Conclusion A: In the process of producing ripples in space time, the object in question would lose some of its momentum. Conclusion B: If movement through space is resisted, then there exists an absolute rest and therefore a reference to compare all velocities. Once again this is me just brainstorming. These conclusions kind of fly in the face of Newton's first law of motion so if someone can point out where I went wrong that would be great. Thanks.