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6 days ago · Accessed 25 October 2024. Aurora, luminous phenomenon of Earth’s upper atmosphere that occurs primarily in high latitudes of both hemispheres; in the Northern Hemisphere auroras are called aurora borealis, aurora polaris, or northern lights, and in the Southern Hemisphere they are called aurora australis or southern lights.
- Southern Lights
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- Southern Lights
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, rays, spirals, or dynamic flickers covering the ...
Jul 23, 2024 · The northern lights are created when energized particles from the sun slam into Earth's upper atmosphere at speeds of up to 45 million mph (72 million kph), but our planet's magnetic field ...
- Stefanie Waldek
Tobias Billings/NASA. Auroras occur within one of Earth’s upper atmosphere layers, the thermosphere. Solar particles trapped here interact with different types of gas molecules, mostly nitrogen and oxygen, resulting in unique, colored displays of light. Oxygen gives off green and red light, while nitrogen glows blue and reddish-purple.
The aurora's characteristic wavy patterns and 'curtains' of light are caused by the lines of force in the Earth’s magnetic field. The lowest part of an aurora is typically around 80 miles above the Earth's surface. However, the top of a display may extend several thousand miles above the Earth.
Oct 19, 2023 · An aurora is a natural light display that shimmers in the sky. Blue, red, yellow, green, and orange lights shift gently and change shape like softly blowing curtains. Auroras are only visible at night, and usually only appear in lower polar regions. Auroras are visible almost every night near the Arctic and Antarctic Circles, which are about 66 ...
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Oct 11, 2024 · Auroras are not just something that happen on Earth. If a planet has an atmosphere and magnetic field, they probably have auroras. We've seen amazing auroras on Jupiter and Saturn. These swirls of red light are an aurora on the south pole of Saturn. Image courtesy of NASA/ESA/STScI/A. Schaller.
