That's because, even though the Earth is casting its shadow on the moon, the sun is still passing through ... which is why the sky is blue. Only the red portion of the light spectrum cuts through ...

That's because, even though the Earth is casting its shadow on the moon, the sun is still passing through ... which is why the sky is blue. Only the red portion of the light spectrum cuts through ...

Narrator: A blood moon lunar eclipse wasn ... It appears blue because air molecules in earth's atmosphere scatter blue light more easily than red. But during sunrise and sunset, the light travels ...