Because of the revolution of the moon around the earth.
A New Moon means "The Moon either when in conjunction with the sun or soon after. being either Invisible or Visible only as a Slender Crescent."
Full moon-It's bright and fully round. New moon-It's there but invisible.
During a new moon, the moon is located between the Earth and the Sun, with the side of the moon that is lit by the Sun facing away from Earth. This alignment results in the dark side of the moon being visible from Earth, making it appear invisible in the night sky.
The sun's corona is typically invisible because its light is overwhelmed by the much brighter photosphere. During a total solar eclipse, the moon blocks the photosphere, allowing the corona to become visible.
If you are referring to lunar phases, there are two phases in which the moon is not visible to the earth. In the New Moon and Dark Moon lunar phases, the moon is not visible to those on earth. See related links for more information.
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.
The opposite of visible is invisible, meaning unable to be seen.
A New Moon means "The Moon either when in conjunction with the sun or soon after. being either Invisible or Visible only as a Slender Crescent."
the moon remains partly visible during a lunar eclipse because the moon cast a shadow on earth
The "new" moon is very close to the Sun in the sky. Of course, the extreme case of a COMPLETELY "new moon" is a solar eclipse, which is VERY visible.
invisible imitation
Because of the sun light reflecting off of it. Update: Normally new moons are invisible since the moon is between the Earth and Sun. However during the rare solar eclipses the new moon will be visible as a silhouette.
visible
Only if you are a Ghost you can get invisible. But it's automatic, you are invisible unless you are hit or take damage your allies are visible to you, and you are visible for them.
The base word of "invisible" is "visible."
more invisible, most invisible
Visible.