Two of his books depicted future Earths dominated by women after the genetic or physical need for men has been reduced.
The film is set on a future Earth invaded by alien life forms.
The action takes place on a future Earth that has established a totally controlled and balanced ecology.
The tone of the series was lighter than the pilot movie, and showed a more positive picture of future Earth.
The stories are all set in an undefined far future Earth, when the sun is nearing the end of its life.
Look at the huge strangeness of this future Earth.
I learned more about this future Earth than I wanted to.
What must a man know or a woman be, for the inhabitants of that future Earth to think it worthwhile to revive them?
His ship crash lands on the future Earth and two fellow marines greet him.
It is a past or future Earth, perhaps one where they never existed.
