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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 ...
The intensity of the HF signal in the ionosphere is less than 3 μW/cm 2, tens of thousands of times less than the Sun's natural electromagnetic radiation reaching the Earth and hundreds of times less than even the normal random variations in intensity of the Sun's natural ultraviolet (UV) energy which creates the ionosphere. The small effects ...
An aurora is a natural light display in the sky, especially in the high latitude (Arctic and Antarctic) regions, in the form of a large circle around the pole. It is caused by the collision of solar wind and charged magnetospheric particles with the high altitude atmosphere ( thermosphere ).
The “Aurora Borealis” also known as The Northern lights are expected to shine over the U.S. as geomagnetic activity driven by solar coronal holes will lead to an explosion of color in the sky (PA)
The magnetic energy that is freely available to be released from a pre-eruption structure, referred to as the magnetic free energy or nonpotential energy of the structure, is the excess magnetic energy stored by the structure's magnetic configuration relative to that stored by the lowest-energy magnetic configuration the underlying photospheric ...
Striations or string-like structures [67] are seen in many plasmas, like the plasma ball, the aurora, [68] lightning, [69] electric arcs, solar flares, [70] and supernova remnants. [71] They are sometimes associated with larger current densities, and the interaction with the magnetic field can form a magnetic rope structure. [72] (See also ...
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