the side of the moon faces the sun is always illimitated, but that side does not always face earth. the difference phases of the moon are caused by the moons near 28 day

Answer: The rest of the month we see parts of the daytime side of the Moon, or phases. These eight phases are, in order, new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter and waning crescent. The cycle repeats once a month (every 29.5 days).