The tops of the dark hemispheres rising above the crater wall startled him so much that he did not immediately recognize them.

Less than half the planet's bright side was visible, dominated presently by its ever dark and frozen hemisphere.

Yet the garage was as black as the darkest hemisphere of some strange moon never touched by the sun.

A few pale stars shone in the apparently boundless dark blue hemisphere above.

Visited portions of the darker outer hemisphere are barren and mountainous.

At the base of the dark hemisphere that loomed large before them, the group halted.

The beams came from tall crystals on the borderline between the light and dark hemispheres of Mercury.

I have become the mightiest thing in the dark hemisphere.

The dark hemisphere is little used except for starship landing facilities.

Then, as they started to inhabit the stacks, so they became the "Lords" of that dark hemisphere.