you mean between planets or something like that?
Right, in space exploration, there are stars, planets, moons and then the orbital surface of each of those. Each body represents a separate surface. Currently, the radio network seems to magically broadcasts its signals across these surfaces, which I feel it it should not. Space Exploration implements AAI Signals, which provides the player a facility to transmit signals across surfaces. But, we are hoping for something more localized, like this.