The lunar surface.
A new moon.
new moon
During the new moon you can't see no bright side because the sun is facing away from the moon.
During a new moon, the side of the moon that is illuminated by sunlight is facing away from Earth so that the dark side of the moon is facing Earth. However, during a total solar eclipse (and with protective gear for your eyes) you can see the moon at the time of new moon. You will see the night time face of the moon without any detail at all.
The moon cycle starts over.
During the new moon phase, the side of the moon facing Earth is not illuminated by the sun, making it impossible to see.
No, during a full moon, we see the entire lighted side of the moon, whereas during a new moon, the lighted side of the moon is facing away from Earth so we see no lighted side at all.
The sun is not reflecting on the moon
The Moon's phase when it's between the Earth and the sun is called a New Moon. It's in this position where at times there is a Solar Eclipse of the Sun. Please refer to the link I have attached.
When you can't see the moon at all in the sky, it is called a new moon. This occurs when the moon is positioned between the Earth and the Sun, making the side of the moon that is illuminated face away from the Earth.
We only see the Moon because it reflects light from the Sun. During a new moon, the far side is illuminated, and the near side is not.
We see solar eclipses only during New Moon, but not every New Moon is accompanied by a solar eclipse.