* Lunar Phases: The moon's phases are caused by the changing angle at which we see the sunlit portion of the moon as it orbits the Earth.
* New Moon: During the new moon phase, the moon is positioned between the Earth and the Sun. This means the sunlit side of the moon faces away from Earth, making it invisible to us.
Other reasons the moon might appear invisible:
* Clouds: Thick clouds can obscure the moon, even during other phases.
* Daytime: Even during other phases, the moon might be difficult to see during the day, especially if it is close to the sun.
* Horizon: If the moon is very low on the horizon, it might be obscured by trees, buildings, or other features of the landscape.
