No they’re not. At least, not yet. The accelerated expansion of the universe is driven by the “dark energy” (whatever this is) and although it prevails at very

No they’re not. At least, not yet. The accelerated expansion of the universe is driven by the “dark energy” (whatever this is) and although it prevails at very large distances it’s easily cancelled by gravity, meaning any gravitationally bound structures stay the same. As time goes, everything outside of the Virgo supercluster we live in will start flying away from us at the speed faster than the speed of light (that’s fine, no violation of special relativity) but the supercluster should remain the same. But if the cosmological constant responsible for the dark energy is not actually a constant but is increasing it might go to the point where dark energy becomes stronger than the gravity on the smaller scales.