The changes in ambient temperature during the day-night cycle.

Besides which, we need a day-night cycle for the Earth forms we brought here; they have priority.

And preferably, yes, it should have some sort of day-night cycle rather than a pure tidal lock.

All area squares can are changed by a day-night cycle, except for levels that are set indoors.

What Lysander found hard to figure was how the planet maintained a regular day-night cycle.

At lower latitudes, the altitude of such balloons varies with the day-night cycle.

The planet should rotate relatively quickly so that the day-night cycle is not overlong.

We all have a day-night cycle of about 24 hours called the circadian rhythm.

"Variability over the course of the day-night cycle, with symptoms worse in the evening and early in the night."

Each pahar of a 24-hour day-night cycle has a specific name and number.