What does the red moon mean?

A red moon represents changes in weather or atmospheric conditions.

A red moon usually occurs when the moon is near the horizon, when it is just rising and about to set. At this time, the atmosphere that the moonlight passes through is thicker, and the Rayleigh scattering received is more significant. The moonlight comes from reflected sunlight, and the Rayleigh scattering is strongest for the blue-violet light with the shortest wavelength in its spectrum, so the remaining light appears orange-red. . The same principle applies to the red color of the sun just rising and about to set.

First, a red moon may be caused by particulate matter or pollution in the atmosphere. When these substances float in the atmosphere, they scatter different colors of light. Red light has longer wavelengths and is easier to penetrate the atmosphere and reach our eyes, so the moon appears red.

Secondly, the red moon may also be a precursor to weather changes. In some cases, a red moon may indicate approaching weather conditions such as storms or haze. This is because moisture and particulate matter in the atmosphere will increase, causing the moon to appear red.

In addition, the red moon may also be related to changes in the earth's magnetic field. Studies have shown that changes in the Earth's magnetic field can affect the ionosphere in the atmosphere, causing the moon to appear in different colors.

Scientific explanation

If you observe from the moon during a total lunar eclipse, you will see a total solar eclipse. It's just that the total solar eclipse on the moon is different from the total solar eclipse on the earth in at least a few points. From the earth, the angle of view of the moon and the sun are almost the same, but from the moon, the angle of view of the earth is larger than that of the sun, so on the moon A total solar eclipse lasts longer than a total solar eclipse on Earth.

A total solar eclipse on the moon can be observed in half of the moon, while a total solar eclipse on the earth can only be observed in a strip area. 3 Since the moon has no atmosphere, the sun's corona can be observed during a total solar eclipse from Earth. On the contrary, since the earth has an atmosphere, the earth's atmosphere can be observed during a total solar eclipse on the moon, and this atmosphere happens to be red.