It means night time.
It is called an eclipse.
Depends on where you're looking from. The moon revolves around the earth.
A solar Eclipse is when the moon passes in front of the sun and a shadow is cast on the earth.
When the Sun and Moon cross paths, it's called a Solar Eclipse. If the Sun is in front of the Earth and the Moon is behind, then it's called a Lunar Eclipse.
The two points where the moon crosses the plane of the earth's orbit are known as the 'nodes' of the moon's orbit. If the moon happens to be near one of the nodes at the time of New Moon or Full Moon, then that's exactly when either a solar or a lunar eclipse can occur (respectively).
When the moon is in the same direction of the sun, it is called a new moon. A week after the new moon, when the moon has completed about a quarter of it's turn around Earth, this is called the first quarter and about three weeks after the new moon and a week after the full moon, it is called the last quarter. If you visualise the moon turning around the Earth and imagine that the direction of which the sun is shining is called the "front' of the Earth, the the quarter moon would be at the 'sides' of the Earth and the full moon is at the 'back'.
the moon has to be in front of the earth
The Moon goes in front of the Sun. The Moon is closer to the Earth than the Sun, so when both the Moon and Sun can be seen from the Earth (i.e. they are both in the same direction) the Moon will always be closer.
Most people call it moon but it is really called "Luna"!
The eclipse in which the Earth is positioned directly between the Sun and the Moon is called a lunar eclipse. During this event, the Earth's shadow falls on the Moon, often giving it a reddish hue, which is sometimes referred to as a "blood moon." Lunar eclipses can only occur during a full moon when the Sun, Earth, and Moon are aligned.
when the moon goes in front of the sun and in front of the earth
The Sun is NEVER between the Earth and the Moon. When the Moon is between the Earth and the Sun, this is called a Solar Eclipse. When the Earth is between the Moon and the Sun, this is called a Lunar Eclipse.