The moons reflection from the Sun's light. The light hits the Earth so the viewer can see the moon.
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The Moon's phases are caused by its orbit around Earth and the changing angles at which sunlight hits its surface. As the Moon moves around Earth, the angle between the Earth, Moon, and Sun changes, causing different portions of the Moon to be illuminated and visible from Earth.
The moon changes phases because different portions of the moon are illuminated by the sun, as seen by observers on Earth. The angle formed by the sun, the Earth, and the moon, is constantly changing as the Earth orbits the sun and the moon orbits the Earth.
The different shapes of the moon seen from Earth are called lunar phases. These phases include new moon, first quarter, full moon, and last quarter, which result from the changing positions of the moon, Earth, and the sun.
The changing views of the moon as seen from Earth are called moon phases. These phases result from the relative positions of the sun, Earth, and moon, causing different portions of the moon to be illuminated.
The changing phases of the moon.
The changing views of the moon as seen from Earth are due to its phases, which are a result of the changing positions of the moon, Earth, and sun. The moon goes through a cycle of phases, including new moon, crescent, first quarter, gibbous, full moon, gibbous, last quarter, and crescent, as it orbits Earth. These phases are the result of the varying amounts of sunlight that illuminate different parts of the moon's surface as seen from Earth.