the phase of the moon when it is invisible from Earth because it passes directly between the Earth and the sun.

During a new moon, the sky seems very dark because there is no light from the moon.

This phase occurs when the moon is positioned between the Earth and the sun, with the sun illuminating the side of the moon facing away from us. As a result, the side of the moon we can see appears completely dark, making it invisible to us. This phenomenon is known as a new moon.