Captain Stone, Earth born, looked first at the mother planet.
The mother planet had taken some ten thousand years to perfect it, by trial and often hideous error.
Their mother planet was riding high above the Sun in the north eastern sky.
The links between the mother planet and her proud colony had been broken long ago.
"Serving the mother planet is the highest of all purposes in life."
The mother planet offered less to our imaginary eyes.
Upon his next visit to their mother planet, he received baronial treatment.
Most colonies have some vegetation, at least, directly descended from the mother planet Earth.
You want to hear of the old mother planet?
It went around the mother planet about once a week, but always with the same surface facing it.