* The Moon illusion: This is a well-known optical illusion that makes the Moon appear larger when it is near the horizon. The exact cause of the Moon illusion is not fully understood, but it is thought to be due to a combination of factors, including the way our eyes perceive objects, the distance of the Moon from the horizon, and the size of the objects surrounding the Moon.
* The curvature of the Earth: The Earth is not flat, but is instead curved. This means that when the Moon is near the horizon, it is actually closer to us than when it is at zenith (the highest point in the sky). Because the Moon is closer to us when it is near the horizon, it appears larger.
* Atmospheric distortion: The Earth's atmosphere is not perfectly clear, but instead contains a variety of particles, including dust, pollen, and water droplets. These particles can scatter and distort light, which can make the Moon appear larger when it is near the horizon.
All of these factors combine to make the Moon look much bigger when it is near the horizon.
