As some may have noticed, entities, including items, fallen into the void under a space station are killed, just like in any other void. My suggestion is, that they should rather be teleported into the overworld dimension to where the space station was created offset by their coordinates in the space station dimension. The offset should apply to players too for as far as I know, the player is always sent to the space station's position regardless to xz coordinates in the space station dimension. The second suggestion is adding a GUI to the space station base block. It could contain some useful information such as time, position of the station and options like coordinates to send the parachest to. Further it could have an energy input and some space station functions like mapping or information transmission.