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New moon
The term is syzygy (astronomy) or a solar eclipse.
Because - a lunar eclipse is when Earth blocks the sun's rays from hitting the moon. This can only happen when the sun, Earth and the moon are nearly perfectly aligned (meaning when Earth comes between the sun and moon - which is when we have a full moon.)
When the moon is either 180 degrees from the sun, or aligned with it. That is, if you could draw a straight line from the sun to the earth and out into space beyond, if the moon lands anywhere on that line, you have spring tides. In that alignment, you'll have either a new moon or a full moon.
When the moon is between the earth and the sun it blocks part or all of the view of the sun and it's called a solar eclipse
When the moon is aligned to the sun and the earth: MOON --> EARTH --> SUN
The gravity of the moon and sun causes the earth's tides. The greatest tides are called 'spring' tides which occur when the earth, moon and sun are aligned. The moon has the greatest effect on our tides because of its proximity.
The different shapes of a moon you see from earth is calledthe different shapes of a moon is called a phases
The Moon and the Sun are on opposite sides.
New moon
When the moon passes between the Sun and Earth there is a new moon. In a special case where the Sun and Moon are aligned there is an eclipse of the Sun (the moon blocking view of the Sun).
you need the moon and the earth Aligned to the sun then enjoy the show!
This is the arrangement for a New Moon.
The phase in which the moon is not visible from earth is called the "new" moon. It happens when the moon is aligned between the sun and the earth (every 28 days), which causes the side of the moon that we usually see to be in shadow.
A lunar eclipse occurs when the moon, sun, and Earth are aligned so that the Earth is between the moon and sun. The shadow from Earth covers the moon, making it impossible to see.
When Earth, the moon and the Sun are perfectly aligned. Not very often...
The earth is aligned with the moon and the sun