Hi, So apparently electrons don't orbit the nucleus of atoms so I'm assuming the lack of movement means that no energy from the atom is radiated away from an atom due to minuscule gravitational waves, over the life of the universe. But gravitational waves have got me thinking about reference frames, can anything ever be stationary to the reference of space-time? I learnt in HS physics class that there is no such thing as an objective reference frame, but wouldn't space-time itself be an objective reference frame? Because it's my understanding that movement of large celestial bodies creates gravitational waves, but can anything in the universe ever not move? And thus not create gravitational wave? Or is it only radial movement (orbits) that radiate gravitational energy? So otherwise can an atom exist in the universe not radiate energy in the form of minuscule orders of magnitude gravitational waves, and what happens to an atom trillions and trillions of years from now after it's radiated all it's 'energy' away?