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Eclipse 2019: Why does the Blood Moon turn red during a total lunar eclipse?

Why does the Blood Moon turn red during a total lunar eclipse?

Tom Kerss of the Royal Observatory Greenwich told Express.co.uk the red light visible on the Moon is the result of sunlight scattering in Earth’s atmosphere.

The astronomer said: “When the Moon passes into the umbra, which is what will happen this time, we will see a total lunar eclipse and that means the Moon will be fully within the darkest part of the Earth’s shadow.

“Because the Earth’s atmosphere is made of gases which refract light and scatter light, what we see is a kind of filtering effect where light passes through the Earth’s atmosphere.

“The blue light is bounced all over the place, hence we have blue skies, and the red light passes through.

READ MORE: What is the best time to see the January Super Blood Moon?

Article source: https://www.express.co.uk/news/science/1071137/Eclipse-2019-why-blood-moon-turn-red-total-lunar-eclipse-super-blood-moon

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