Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Mysterious “elves” and “sprites” observed in the atmosphere of Jupiter by the NASA mission

Mysterious “elves” and “sprites” observed in the atmosphere of Jupiter by the NASA mission



The supernaturally called phenomena refer to transient light events – bright, unpredictable and bizarre flashes.

For the first time such events are seen in another world, says NASA.

The lights on the largest planets in the solar system were predicted by scientists who thought they would be observed in Jupiter’s liquid atmosphere.

They were discovered by scientists who worked with Juno’s ultraviolet spectrograph, a space probe orbiting the planet.

“UVS was created to characterize the beautiful northern and southern lights of Jupiter,”

; said Giles, a Juno scientist and lead author.

“But we found UVS images that not only showed Jovian’s glow, but also a bright flash of UV light in the corner where it shouldn’t be. The more our team looked at it, the more we realized that Juno might have discovered Jupiter’s TLE. . “

Sprite is a transient light event caused by lightning strikes from thunderstorms beneath it.

On Earth, they last only a few milliseconds, distinguishable from a central light with long finishes reaching to the ground and up to the sky.

Meanwhile, “elves”, which is abbreviated to Light Emission and very low frequency interference due to electromagnetic pulse sources, look like a flattened disk and are located in the upper atmosphere.

Although equally short-lived, they can reach 320 kilometers on Earth.

An illustration of what a sprite might look like in Jupiter’s atmosphere.

“On Earth, sprites and elves look reddish in color because of their interaction with nitrogen in the upper atmosphere,” Giles said.

“But on Jupiter, the upper atmosphere consists mostly of hydrogen, so they’ll probably look either blue or pink.”

These events could have been just huge lightning strikes, but scientists quickly ruled out that possibility; the lights were detected 300 kilometers) above the altitude of the water-cloud layer of Jupiter, where most of the planet’s lightning is formed.

In addition, the spectrograph recorded that bright flashes were dominated by hydrogen emissions.

“We keep looking for more telltale signs of elves and sprites every time Juno does science,” Giles said.

“Now that we know what we’re looking for, it will be easier to find them on Jupiter and other planets. And comparing sprites and elves from Jupiter to those here on Earth will help us better understand the electrical activity in the planets’ atmospheres. . ”

The findings were published Oct. 27 in the Journal of Geophysical Research: Planets.

He returns information about Jupiter’s huge storms, giving scientists crucial “Jovian Lightning” data, which reveals that they are even more similar to thunderstorms on Earth than previously thought.


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