Launching a rocket in orbit makes any spacefarer output port behave like if they are in space, even those of landed rockets, ejecting gases "into space", wasting resources.
I have not tested the liquid port.
- Build two rockets;
- Insert gases with the spacefarer port and direct to the input port inside one of the rockets;
- Launch the other into the orbit of the planetoid.
- The input inside of the landed one will lauch gases "into space".
The output port outside rocket must be "blocked" with a gas pipe without receiver.