Gravitationally bound objects do not separate due to cosmic expansion, as their mutual gravitational attraction counteracts this effect. The discussion explores the minimum gravitational force needed to prevent separation, assuming a constant rate of expansion, as described by the Hubble constant. Einstein's cosmological constant is mentioned as a counterbalance to gravity, allowing for a static universe model. While gravitational fields extend infinitely, their influence weakens with distance, potentially allowing loosely bound objects to detach under expansion. The balance between gravitational attraction and the repulsive effects of accelerated expansion is significant at cosmological distances, particularly near the Hubble radius.