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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 ...
Ionizing radiation is the cause of blue glow surrounding sufficient quantities of strongly radioactive materials in air, e.g. some radioisotope specimens (e.g. radium or polonium), particle beams (e.g. from particle accelerators) in air, the blue flashes during criticality accidents, and the eerie/low brightness "purple" to "blue" glow ...
A simple example of this is being able to see farther in heavy rain than in heavy fog. 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.
The particles interact with molecules of atmospheric gases to cause the famed glowing green and reddish colors of the aurora. ... Northern lights were also seen in 2023 in Tennessee, because the ...
Whether or not you've seen them in Alaska or Greenland, the spectacular aurora borealis — or, the northern lights — are a mystical, fascinating sight.
The map of the aurora forecast shows that northern parts of the country have a better chance of seeing the auroras. A view line that shows "the southern extent of where aurora might be seen on the ...
Such a storm increases the chance of auroras — also known as northern lights — and can temporarily disrupt power and radio signals. NOAA's Friday forecast shows continued higher-than-normal activity, but the chances for another overnight show are slim farther south of Canada and the northern Plains states. What causes northern lights?
NOAA advises those who hope to see the northern lights to get away from city lights. The best viewing time is usually within an hour or two before or after midnight, and the agency says the best occasions are around the spring and fall equinoxes due to the way the solar wind interacts with Earth’s magnetic field.