> Gravitational waves are a prediction of GR but not of quark stars I don't know where you're getting that from. Gravitational waves can be emitted by any syst

> Gravitational waves are a prediction of GR but not of quark stars I don't know where you're getting that from. Gravitational waves can be emitted by any system with a time-varying quadrupole moment. Mergers of quark stars would certainly qualify. Even a single quark star that was wobbly enough would.