Motion in an expanding space

Hi Sylas,Evolution is my thang, so I'm prepared to totally misunderstand this (I already hear the whooosh of something passing overhead). But is there a point, for two given masses at a certain distance (if such a thing is sensible), where they will move closer if inside that distance, or "expand" apart if outside it (ie gravity isn't strong enough to overcome expansion)? Am I thinking in the correct context?Go easy, brother, please!Mark

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