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Sprites or red sprites are large-scale electric discharges that occur in the mesosphere, high above thunderstorm clouds, or cumulonimbus, giving rise to a varied range of visual shapes flickering in the night sky. They are usually triggered by the discharges of positive lightning between an underlying thundercloud and the ground.
Luminous sprite lightning danced across Texas and Oklahoma skies during a storm on June 19.Paul Michael Smith shared video to YouTube that shows a thunderstorm and red sprite lightning, or sprites ...
Lightning bolts can be extremely dangerous yet hauntingly beautiful, and over the weekend, one photographer managed to capture video of a type of lightning that very few have ever seen. Around ...
Representation of upper-atmospheric lightning and electrical-discharge phenomena Discovery image of a TLE on Jupiter by the NASA Juno probe. [1]Upper-atmospheric lightning and ionospheric lightning are terms sometimes used by researchers to refer to a family of short-lived electrical-breakdown phenomena that occur well above the altitudes of normal lightning and storm clouds.
Typically, lightning discharges 30,000 amperes, at up to 100 million volts, and emits light, radio waves, x-rays and even gamma rays. [1] Plasma temperatures in lightning can approach 28,000 kelvins. Atmospheric electricity describes the electrical charges in the Earth's atmosphere (or that of another planet).
Astronauts on board the International Space Station are treated to stunning views of Earth on a near daily basis, but a 'red sprite' could impress even the most jaded space traveler. The spectacle ...
First, the spectrum of the gamma-rays seen by RHESSI matches very well to the prediction of relativistic runaway at 15–20 km. [14] Second, TGFs are strongly concentrated around Earth's equator when compared to lightning. [15] (They may also be concentrated over water compared to lightning in general.)
Thomas Ashcraft (born 1951, Springfield, Illinois) [1] is an American astronomer, naturalist, scientific instrument-maker, and artist. [2] He is known for his observations of transient luminous events (lightning sprites), [3] meteoric fireballs, [4] solar radio and optical phenomena, [5] and Jupiter radio emissions.