People see only the half of the moon that faces the sun and is illuminated. Phases of
the moon in order (counterclockwise):
Lunar Phases -- The different appearances of the moon.
New moon -- The phase of the moon when the dark hemisphere faces earth.
Waxing crescent moon-- phase in between new moon and first quarter.
First quarter moon -- we see half of the moon’s illuminated hemisphere & half is dark.
Waxing gibbous moon -- phase in between first quarter and full moon
Waning gibbous moon
Third quarter moon
Waning crescent moon