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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 ...
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 ...
Red, orange and yellow have longer wavelengths, which means, in short, they have a better chance of making the long journey. -Wildfire smoke that turns the sky a hazy orange.
What causes aurora borealis? The northern lights were visible over Warren Wilson College on May 10, 2024, as captured in this photo by Jen Blake Fraser. For more: jenniferblakefraser.com and ...
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 .
Sprites or red sprites are large-scale ... the "root cause" of sprite lightning remains unknown, "apart from a general association with positive cloud-to-ground ...
Structures within a surface cause light to be reflected back, but in the case of pearlescence some or most of the light is white, giving the object a pearl-like luster. [16] Artificial pigments and paints showing an iridescent effect are often described as pearlescent, for example when used for car paints .