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This process of reflection/absorption is what causes the range of cloud color from white to black. [19] Other colors occur naturally in clouds. Bluish-grey is the result of light scattering within the cloud. In the visible spectrum, blue and green are at the short end of light's visible wavelengths, while red and yellow are at the long end. [20]
An aurora [a] (pl. aurorae or auroras), [b] also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), [c] is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of brilliant lights that appear as curtains ...
The green ovals turn red when the aurora is forecast to be more intense. A thin red 'viewline' represents the southern-most locations from which you may see the aurora on the northern horizon.
What causes aurora borealis? ... "It was mostly a faint glow and I could tell that it was red, pink or green," Fraser said. "Occasionally more brilliant streaks would appear. Some of those streaks ...
When particles flowing from the sun are caught in Earth's magnetic field, their interaction with molecules of atmospheric gases cause the famous eerie green and rusty red displays. Aurora ...
Green flash occurs because the atmosphere causes the light from the Sun to separate, or refract, into different frequencies. Green flashes are enhanced by mirages, which increase refraction. A green flash is more likely to be seen in stable, clear air, when more of the light from the setting sun reaches the observer without being scattered.
The aurora borealis was visible as far south as Florida on Thursday. Photos show the sky lit up in red and purple, even in some brightly-lit areas like New York City and Chicago .
Airglow over Auvergne, France Yellow, green and red bands of airglow along Earth's limb as seen from space. Airglow (also called nightglow ) is a faint emission of light by a planetary atmosphere . In the case of Earth's atmosphere , this optical phenomenon causes the night sky never to be completely dark, even after the effects of starlight ...