Although the new moon is the dark side of the moon and the full moon is the lit side of the moon they both cover one half of the Moon. The waxing crescent and the waxing gibbous tell that the new moon is transitioning to a full moon. The first quarter sign that the lunar month has almost reached a halfway point. The waning crescent and the waning gibbous bothe indicate that the moon is changing from full moon to a new moon. Finally, the last quarter shows that it is the last stages of the lunar month.
From Earth, we only see the part of the Moon that reflects the Sun’s light to us. The Moon orbits the Earth, at an average speed of 382,400 kph (237,612.344 mph). At its average speed the Moon’s orbit is around the Earth, is 29.53 days. This is known as a lunar month, when the moon changes from new moon, to another. Since the Moon is revolving around the Earth, we see a different perspective of the lit Moon. Technically the moon always has one half lit, it is just from where we stand is what we see of the lit