During a new moon or full moon the illumination portion of the moon is not visible at all from earth because earth is between the sun and the moon or the moon is between earth and the sun
During the new moon we can only see the Moon's shadow because the Moon is currently between the earth and the Sun. But in the full moon the illumination portion is full because the earth is between the Moon and the Sun.
During the new moon we can only see the Moon's shadow because the Moon is currently between the earth and the Sun. But in the full moon the illumination portion is full because the earth is between the Moon and the Sun.
