What happens to the Moon’s appearance during a new moon?

During a new moon, the Moon is positioned between Earth and the Sun. In this configuration, the side of the Moon that is illuminated by the Sun is facing away from Earth, while the side facing Earth is in shadow. This results in the Moon being essentially invisible to observers on Earth, as the brightest part is turned away from us. This unique alignment leads to the lack of visible illumination, confirming that the dark side faces Earth, making the Moon "invisible" during this phase.

In contrast, the other options describe scenarios that do not align with the new moon phase. For example, during a full moon, the bright side faces Earth, making the Moon fully visible, and a crescent shape occurs during other phases, not the new moon. The Moon also does not glow brightly in the new moon phase, as it is not illuminated from our perspective.