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On the night of the Supermoon, the lunar orb will much look larger and brighter than usual. When the Moon approaches within 10 per cent of its closest possible distance to Earth it is classed as a Supermoon. The effect is known as Rayleigh Scattering and is also responsible for the blue colour of some eyes. “The bluer, shorter wavelength light scatters and the longer wavelength red light passes through and makes it to the Moon.”
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“During a lunar eclipse, the only light reaching the Moon passes through the Earth’s atmosphere. “This happens for the exact same reason that our sunrises and sunsets here on Earth are brilliant shades of pinks and oranges. NASA explained: “When the Moon passes into the Earth’s shadow, it turns red.Ī Super Moon over the London skyline (Image: PA) When the Moon enters the Earth's darkest shadow it almost disappears in the sky - but a trick of the light will paint the Moon a deep red hue. “In order to see a lunar eclipse, you must be on the night side of the Earth, facing the Moon, when the Earth passes in between the Moon and the Sun.” What is a Blood Moon? NASA said: “Lunar eclipses occur about two to four times per year, when the Moon passes into the Earth’s shadow.