It was mentioned that during this event, three sun&#x27;s mass equivalents were turned into gravity waves, I guess that means that matter particles were turned into gravitons.<p>But what happens to them? Is there any way to turn them back into matter? If not, then at some point, will all matter in the universe end up as gravitons?<p>Also, if an object moving through space creates gravitational waves, doesn&#x27;t that violate the law that states that a non-accelerating object will not lose&#x2F;gain any energy? Because if you have to emit gravitons as you move in space, and emitting them requires energy or matter expenditure, then an object moving through space will slowly lose all it&#x27;s mass?