Why Moon Turns Blood Red During Total Eclipse

Have you ever wondered why the Moon turns blood red during a total lunar eclipse? The answer is a physics phenomenon called Rayleigh scattering. When the Moon is eclipsed, only the refracted light from the Earth's atmosphere reaches it. So the green and the blue light are scattered, but the red wavelengths get filtered out. Some of that red light is refracted, or bent, as it passes through Earth's atmosphere and ends up shining on the Moon with a ghostly red light. This is Rayleigh scattering, the same physics behind the red color of the Sun during sunrise and sunset. The redness of the Moon depends on atmospheric conditions resulting from fires, volcanic eruptions, and dust storms.

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[daniellebarnett]

Probably from the sun. At a solar eclipse . I don't know about a lunar eclipse.