One side of the moon (the Earth facing side) becomes fully visible at Full Moon.
Full moon-It's bright and fully round. New moon-It's there but invisible.
When the moon is fully visible to observers on Earth, it is said to be at its full moon phase. This occurs when the sun, Earth, and moon are aligned in a straight line, with the Earth in between the sun and moon. The full moon appears as a complete circle and is the brightest phase of the moon.
When the side of the moon facing Earth is dark and not visible, it is called the "new moon" phase. During this phase, the sunlit side of the moon is facing away from Earth, making it appear dark from our perspective.
New Moon Phase
New Moon Phase
The waxing crescent is the first phase after the new moon.
When the moon is not visible to observers on Earth, it is likely in its new moon phase. During this time, the side of the moon facing Earth is not illuminated by the sun, making it appear dark and invisible from our perspective.
No, the visibility of the moon depends on its phase and its position in the sky. The moon is not always visible because it goes through different phases, such as new moon when it is not visible at all and full moon when it is fully illuminated and visible all night.
It appears completely dark during the new moon phase.
new moon
a
New Moon